News

Mar. 25, 2024

応用物理学会春季学術講演にて5件の発表を行いました。

高橋 俊, 小口 研一, 亀井 健斗, 水口 高翔, スプラット スペンサー, 小関 泰之「広帯域波長可変ファイバ光パラメトリック発振器とチタンサファイアレーザーを用いた誘導ラマン散乱イメージング」第71回応用物理学会春季学術講演会、23p-12C-6、東京、2024年3月23日。

亀井 健斗, 高橋 俊, 小口 研一, 小関 泰之「広帯域波長可変ファイバ光源の自動チューニングによる誘導ラマンスペクトルイメージング」第71回応用物理学会春季学術講演会、23p-12C-7、東京、2024年3月23日。

Yang Ma, Takaha Mizuguchi, Spencer Spratt, Yasuyuki Ozeki, "Label-Free Organelle Imaging by Hyperspectral Stimulated Raman Scattering and Deep Learning," 第71回応用物理学会春季学術講演会、23p-12C-8、東京、2024年3月23日。

車 一宏, Pingault Benjamin, Chia Cleaven,Haas Michael, D Joe Graham, Rimoli Assumpcao Daniel, Weiyi Ding Sophie1, Jin Chang, Xin C. J.,Yeh Matthew, Sinclair Neil, Lončar Marko「フォノニック結晶を用いたフォノン-単一欠陥センター相互作用の制御」第71回応用物理学会春季学術講演会、23p-21B-6、東京、2024年3月23日。

Zicong Xu, Kenichi Oguchi, Sho Nitanai, Yoshitaka Taguchi, Yuki Sano, Yasuyuki Ozeki, "High-power quantum enhancement based on symmetric beamsplitter and its practice in stimulated Raman scattering microscopy," 第71回応用物理学会春季学術講演会、25p-12P-8、東京、2024年3月25日。 [The 55th Young Scientist Presentation Award Speech]  

Mar. 15, 2024

We held the concluding meeting of the Quantum-CREST project, which spanned 5.5 years.

Mar. 1, 2024

月刊OPTRONICS誌の特集「光学顕微鏡技術の発展」に寄稿しました。

小関泰之「総論」オプトロニクス、vol. 43, no. 3, p. 64 (2024).

小関泰之「誘導ラマン散乱顕微法とラマンプローブによる細胞動態の詳細解析」オプトロニクス、vol. 43, no. 3, pp. 76-79 (2024).

Feb. 20, 2024

Yasuyuki Ozeki delivered a keynote talk at the third annual MGH/UTokyo Graduate Students Symposium.

Y. Ozeki, "15 years of advancements in stimulated Raman scattering microscopy," the 3rd annual MGH/UTokyo Graduate Students Symposium, Keynote, Tokyo, Feb. 20, 2024.

Feb. 3, 2024

小関が増原さきがけ発展研究会にて発表しました。

小関泰之「誘導ラマン散乱顕微法の最近の進展」さきがけ「光の利用と物質材料・生命機能」2023年度発展研究会、発表番号A5、直島、2024年2月3日。

Jan. 27, 2024

Yasuyuki Ozeki had an invited talk and a poster presentation at Photonics West 2024.

Y. Ozeki, J. Shou, A. Komazawa, and M. Kamiya, "Super-resolution Raman probe imaging," Photonics West, paper 12855-6, Jan. 27, 2024. (Invited paper)

Y. Ozeki, S. J. Spratt, and F. Obata, "Imaging the uptake of specific amino acids by deuterium labeling and stimulated Raman scattering," Photonics West, paper 12855-59, Jan. 29, 2024. (poster)

Jan. 18, 2024

小関がレーザー学会にて招待講演を行いました。

小関泰之、高橋俊、小口研一「誘導ラマン顕微法のための波長可変・繰り返し固定ファイバ光パラメトリック発振器」レーザー学会学術講演会第44回年次大会、B05-18p-IX-01、日本科学未来館、2024年1月18日。（招待講演）

Dec. 4, 2023

白崎が招待講演を行いました。

Y. Shirasaki, “LCI-S and TDCSS, the pioneering tools to reveal cellular secretory responses,” Workshop of the Department of Mechanical Engineering at National Yang Ming Chiao Tung University (NYCU), Taiwan, Dec. 4, 2023

Nov. 30, 2023

小関が招待講演を行いました。

小関泰之「誘導ラマン散乱とラマンプローブによる分子イメージングの展開」第18回ナノバイオメディカル学会、S-2-1、東京大学、2023年11月30日。

Nov. 16, 2023

日本生物物理学会年会にて3件のポスター発表を行いました。

M. Kato, Z. Yang, N. Suzuki, M. Yamagishi, T. Funatsu, and Y. Shirasaki, “Single-cell imaging of IL-1β release dynamics in pyroptosis,” 第61回日本生物物理学会年会、2Pos220、名古屋、2023年11月15日。

Z. Yang, M. Yamagishi, N. Suzuki, E. Kuroda, S. Sakuma, T. Funatsu, and Y. Shirasaki, “High-throughput system for real-time single-cell secretion imaging with optical waveguide chip,” 第61回日本生物物理学会年会、3Pos237、名古屋、2023年11月16日。

Y. Kurisu, Z. Yang, K. Nagaoka, K. Kakimi, T. Funatsu, and Y. Shirasaki, “Live cell imaging of liquid factor secretion as an indicator of cytotoxicity in cancer immunity”, 第61回日本生物物理学会年会、3Pos241、名古屋、2023年11月16日。

Nov. 16, 2023

小関が招待講演を行いました。

Y. Ozeki, "Quantum enhancement towards sensitive molecular vibrational imaging," Quantum Innovation 2023, Quantum Sensing Track, SE-03-02, Tokyo,  Nov. 16, 2023.

Nov. 21, 2023

Our group had two presentations at 34th 2023 International Symposium on Micro-NanoMechatronics and Human Science (MHS2023).

Zhuohao Yang won Best Paper Award. Congratulations!

Zhuohao Yang, Mai Yamagishi, Nubutake Suzuki, Kazuyo Moro, Etsushi Kuroda, Shinya Sakuma, Takashi Funatsu and Yoshitaka Shirasaki, “Visualization of Secretion Dynamics by Time Differentiation of Secretion Signals”, 34th 2023 International Symposium on Micro-NanoMechatronics and Human Science (MHS2023), Nagoya, Japan, Nov. 21, 2023.

Yuto Kurisu, Zhuohao Yang, Koji Nagaoka, Kazuhiro Kakimi, Takashi Funatsu and Yoshitaka Shirasaki, “Live Cell Imaging of Humoral Factor Secretion as an Indicator of Cytotoxicity in Cancer Immunity”, 34th 2023 International Symposium on Micro-NanoMechatronics and Human Science (MHS2023), Nagoya, Japan, Nov. 21, 2023.

Oct. 27, 2023

小関が解説記事を執筆しました。

小関泰之「はじめてのラマン散乱計測」精密工学会誌、vol. 89, no. 10, pp. 763-766, 2023.

Oct. 26, 2023

CREST「高速ラマン・プローブ・機械学習による革新的生体計測」のキックオフ会議を神谷G・舟橋Gと合同で開催しました。

Oct. 23, 2023

白崎が招待講演を行いました。

Y. Shirasaki, “LCI-S and TDCSS: Pioneering tools revealing new frontiers in cell death and immune response studies,” SFB1403 SEMINAR, CECAD, University of Cologne, Oct. 23,2023

Oct. 17, 2023

CSJ化学フェスタ2023にて小関が招待講演を行いました。

小関泰之「誘導ラマン散乱顕微法とラマンプローブによる超多色/代謝イメージング」CSJ化学フェスタ2023、A1-06、船堀、2023年10月17日。

Oct. 16, 2023

Zhuohao Yang had a presentation and Yoshitaka Shirasaki’s co-researcher presented a poster at MicroTAS 2023.

Z. Yang, M. Yamagishi, N. Suzuki, Y. Kurisu, K. Nagaoka, K. Moro, K. Kakimi, E. Kuroda, S. Sakuma, T. Funatsu, Y. Shirasaki, “Live fluorosopt: High-througput system for real-time single-cell secretion imaging with optical waveguide chip,” the International Conference on Miniaturized Systems for Chemistry and Life Sciences (µTAS 2023), 1B1.2 (Oral), Katowice, Poland, Oct. 16, 2023.

N. Kiyama, M. Saito, Y. Shirasaki, Y. Yamanishi, S. Sakuma, “High-rigidity on-chip membrane pump for high-speed picolitre pipette,” the International Conference on Miniaturized Systems for Chemistry and Life Sciences (µTAS 2023), M139.e (Poster), Katowice, Poland, Oct.16, 2023.

Sep. 23, 2023

応用物理学会学術講演会にて6件の発表を行いました。

小関泰之「誘導ラマン散乱による分子イメージングの展開」第84回応用物理学会秋季学術講演会、23p-A304-4、熊本、2023年9月23日。（招待講演）

小関泰之、寿景文、駒沢歩弥、神谷真子「光スイッチングラマンプローブによる超解像イメージング」第84回応用物理学会秋季学術講演会、20p-A305-17、熊本、2023年9月20日。

田口富隆、王允卓、田之村亮汰、種村拓夫、小関泰之「余剰段構造による多面光波変換型ユニタリ変換器の高速な構成法」第84回応用物理学会秋季学術講演会、20p-A308-20、熊本、2023年9月20日。

佐野由季、田口富隆、小口研一、小関泰之「導波路を用いたスクイージングにおける空間的な非縮退光パラメトリック増幅による雑音増加」第84回応用物理学会秋季学術講演会、21p-P18-1、熊本、2023年9月21日。

小口研一、徐自聡、田口富隆、佐野由季、似内渉、小関泰之「量子増強誘導ラマン散乱顕微法のためのバランスド光検出器の開発」第84回応用物理学会秋季学術講演会、23a-A601-5、熊本、2023年9月23日。

Zicong Xu, Kenichi Oguchi, Sho Nitanai, Yoshitaka Taguchi, Yuki Sano, and Yasuyuki Ozeki, “Quantum-enhanced stimulated Raman scattering imaging in dual-polarization scheme,” 第84回応用物理学会秋季学術講演会、22a-A310-4、熊本、2023年9月22日。

Sep. 19, 2023

小関を研究代表者、神谷先生（東工大）、舟橋先生（慶應大）を主たる共同研究者とする研究提案がCRESTに採択されました。研究期間は2023年10月〜2029年3月です。

Sep. 7, 2023

Our group had three presentations at the 12th Asia-Pacific Laser Symposium (APLS2023). 

Y. Taguchi won Student Poster Award. Congratulations!

Z. Xu, K. Oguchi, S. Nitanai, Y. Sano, Y. Taguchi, and Y. Ozeki, "Picosecond pulsed squeezing at 844 nm with a PPLN waveguide," the 12th Asia-Pacific Laser Symposium (APLS2023), CTu1-03, Hakodate, Sep. 5, 2023.

Y. Sano, Y. Taguchi, K. Oguchi, and Y. Ozeki, "Spatially non-degenate optical parametric amplification as noise source in squeezing using waveguides," the 12th Asia-Pacific Laser Symposium (APLS2023), PCW-01, Hakodate, Sep. 6, 2023.

Y. Taguchi, Y. Wang, R. Tanomura, T. Tanemura, and Y. Ozeki, "Phase-insensitive matrix norm for programmable unitary transformer with photon counters at the outputs," the 12th Asia-Pacific Laser Symposium (APLS2023), PCW-03, Hakodate, Sep. 6, 2023.

Aug. 18, 2023

Y. Ozeki contributed to an article in 'Experimental Medicine' (in Japanese).

小関が「実験医学」誌に寄稿しました。

小関泰之、神谷真子「高速誘導ラマン散乱顕微鏡とactivatableラマンプローブによる多重酵素活性イメージング」実験医学、vol. 41, no. 14, pp. 2290-2293, 2023.

Aug. 17, 2023

Yoshitaka Shirasaki gave an invited talk and Zhuohao Yang gave a talk at the 3rd Japan and Australia Meeting on Cell Death. 

Y. Shirasaki, M. Yamagishi, K. Izawa, T. Kamatani, K. Kato, T. Yasumi, T. Funatsu, R. Nishikomori, and O. Ohara, “Visualization of IL-1β production and cell death from human monocytes,” The 3rd Japan and Australia Meeting on Cell Death (JAM ON CELL DEATH 2023), Oral 6, Melbourne,  Aug. 17, 2023.

Z. Yang, N. Suzuki, K. Kato, K. Izawa, E. Kuroda, M. Yamagishi, R. Nishikomori, T. Funatsu, and Y. Shirasaki, “The real-time imaging of dynamic message-release during cell death by live FluoroSpot assay,” The 3rd Japan and Australia Meeting on Cell Death (JAM ON CELL DEATH 2023), abs #38 (Lightning talk selected), Melbourne,  Aug.17, 2023.

Zhuohao Yang won the Best Lightning Talk Presentation Award. Congratulations!

August 1, 2023

Our lab welcomes the following new members:

Associate Prof. Yoshitaka Shirasaki

Assistant Prof. Kazuhiro Kuruma

Postdoctoral Researcher Dr. Zhuohao Yang

June 26-30, 2023

Kenichi Oguchi, Yoshitaka Taguchi and Zicong Xu had presentations at 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO-CLEO/Europe-EQEC 2023).

Y. Taguchi, Y. Wang, R. Tanomura, T. Tanemura and Y. Ozeki, "Rapidly convergent fabrication-error tolerantunitary processor using few-layer-redundant multi-plane light conversion," 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO-EUROPE 2023), JSIII-4.2, Munich, June 30, 2023.

Z. Xu, K. Oguchi, S. Nitanai, Y. Taguchi, Y. Sano and Y. Ozeki, "Quantum-enhanced stimulated Raman scattering spectroscopy in dual-polarization scheme," 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO-EUROPE 2023), EA-3.4, Munich, June 29, 2023.

K. Oguchi, S. Nitanai and Y. Ozeki, "Complete analysis of picosecond optical pulses by using the offset frequency intensity modulation," 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO-EUROPE 2023), CF-6.6, Munich, June 28, 2023.

June 29, 2023

Y. Ozeki gave an invited talk at EUROPL2023.

Y. Ozeki, "Recent advances in molecular-vibrational imaging with stimulated Raman scattering," EUROPL2023, Tuesday, June 29, 2023.

June 26, 2023

Yuki Sano won The Harashima Academic Incentive Award from The Foundation for Promotion of Electrical, Electronic and Information Sciences.

公益財団法人電気電子情報学術振興財団 令和5年度原島博学術奨励賞

受賞対象：「高感度光計測のためのマルチモード性を考慮したパルススクイージング系の時空間制御」

June 26, 2023

Y. Ozeki gave a plenary lecture, and T. Mizuguchi presented a poster at Biomedical Raman Imaging in Atlanta.

Y. Ozeki, "Advancing multicolor SRS microscopy with functional Raman probes and quantum light," Biomedical Raman Imaging 2003, Plenary Lectures 3, Atlanta, June 25, 2023.

T. Mizuguchi and Y. Ozeki, "Label-free and Raman probe imaging by integrated SRS-fluorescence microscope," Biomedical Raman Imaging 2003, Poster, Atlanta, June 25, 2023

June 17, 2023

Takaha Mizuguchi presented a poster and received the poster award at BIO UT.

水口高翔「誘導ラマン散乱による分子振動イメージングの展開」第22回東京大学生命科学シンポジウム、P-195、2023年6月17日。（優秀ポスター賞受賞）

May 12, 2023

Shun Takahashi had a presentation at CLEO 2023.

S. Takahashi, J. Shou, G. Dai, and Y. Ozeki, "Widely tunable and repetition-rate-fixed fiber optical parametric oscillator," Conference on Lasers and Electro-Optics (CLEO2023), paper SF2H.4, San Jose, May 12, 2023.

Apr. 19, 2023

Y. Ozeki gave an invited talk at ALPS2023.

Y. Ozeki, K. Oguchi, and Z. Xu, "Quantum enhancement for molecular-vibrational imaging," The 12th Advanced Lasers and Photon Sources (ALPS2023), ALPS18-01, Yokohama, Apr. 19, 2023. (Invited)

Apr. 1, 2023

Ozeki group moved to Research Center of Advanced Science and Technology, The University of Tokyo.

Mar. 28, 2023

Y. Ozeki gave an invited talk at the 143rd Annual Meeting of the Pharmaceutical Society of Japan.

小関泰之、スペンサージョンスプラット、小幡史明「重水素化アミノ酸によるラマン代謝イメージング」第143回日本薬学会年次大会、S59-03、北海道大学、2023年3月28日。

Mar. 24, 2023

Hikaru Akaboshi and Sho Nitanai received their bachelor's degrees. Congratulations!

Mar. 23, 2023

Yuki Sano and Shun Takahashi received their master's degrees. Yuki Sano also received Graduate School of Engeneering Deen's Award. Congratulations!

March 18, 2023

We had a presentation at the JSAP spring conference.

高橋俊、小関泰之「広帯域波長可変ファイバ光パラメトリック発振器の高出力化」第70回応用物理学会春季学術講演会、18a-A501-4、上智大学、2023年3月18日。

Feb. 15, 2023

Our research report has been published in Optronics Journal.

小口研一、徐自聡、小関泰之「高感度分子イメージングのための量子増強誘導ラマン散乱顕微法の開発」オプトロニクス、vol. 42、no. 2、pp. 97-102、2023。

Jan. 28-Feb. 2, 2023

Kenichi Oguchi and Takaha Mizuguchi had presentations at Photonics West 2023.

K. Oguchi, Z. Xu, Y. Taguchi, S. Takahashi, Y. Sano, T. Mizuguchi, K. Katoh, and Y. Ozeki, "Quantum-enhanced stimulated Raman scattering microscopy toward breaking the shot noise limit in high-power regime," Photonics West 2023, paper 1239206, San Francisco, Jan. 29, 2023.

T. Mizuguchi, C. T. Knight, M. Goto, M. Ninomiya, M. Egawa, and Y. Ozeki, "Three-dimensional analysis of water dynamics in human skin by stimulated Raman scattering imaging," Photonics West 2023, paper 123920A, San Francisco, Jan. 30, 2023.

Jan. 18, 2023

Yasuyuki Ozeki gave an invited talk at the 43rd Annual Meeting of the Laser Society of Japan.

小関泰之「誘導ラマン散乱顕微法のための低雑音/高機能パルスファイバーレーザーの開発」レーザー学会学術講演会第43回年次大会、S06-18p-V-07、2023年1月18日。

Jan. 25, 2023

A review article was published in The Review of Laser Engineering.

Y. Ozeki, "Development of pulsed fiber lasers for stimulated Raman scattering microscopy," The Review of Laser Engineering, vol. 51, pp. 32-36 (2023). (in Japanese)

小関泰之「誘導ラマン散乱顕微法のためのパルスファイバーレーザーの開発」レーザー研究、vol. 51, pp. 32-36 (2023).

Dec. 22, 2022

We had in-person CREST meeting with Yamashita-lab and Yasui-lab for the first time in three years. We enjoyed discussions on latest research achievements and lab tour.

Dec. 13, 2022

Our recent paper published in Optics Letters was included in Top Downloads.

Dec. 8, 2022

Our recent paper published in Optics Letters was included in Today's top downloads.

December 2, 2022

Yasuyuki Ozeki gave an invited talk at the 45th Annual Meeting of the Molecular Biology Society of Japan.

小関泰之「誘導ラマン散乱顕微法による超多重イメージングおよび代謝イメージング」日本分子生物学会、3AW-11-3、幕張メッセ、2022年12月2日。

November 22, 2022

Yasuyuki Ozeki contributed "Super-multiplexed imaging and metabolic imaging by stimulated Raman scattering" to "The Cell" December issue, a special issue of "Frontiers of Raman Imaging".  

小関泰之「誘導ラマン散乱による超多重イメージングと代謝イメージング」細胞、vol. 54, no. 13, p. 4-7, 2022.

November 18, 2022

Yasuyuki Ozeki gave an invited talk at the 570th meeting of the Laser Society of Japan "Next generation fiber laser technology".

小関泰之「誘導ラマン散乱顕微法のためのパルスファイバレーザ」 レーザー学会第570回研究会「次世代ファイバレーザー技術」、名古屋大学、2022年11月18日。

Oct. 1, 2022

Our group welcomes Yang Ma as a master student.

September. 20 - 23, 2022

We had several presentations at JSAP conference.

田口 富隆、小関 泰之「真空場スクイージングのための光パラメトリック増幅のin situ位相不整合検出法」第83回応用物理学会秋季学術講演会、20a-A404-8、2022年9月20日。

水口 高翔、ナイト クリストファ鷹也、後藤 真紀子、二宮 真人、江川 麻里子、小関 泰之「誘導ラマン散乱によるヒト皮膚の水動態3Dイメージング 」第83回応用物理学会秋季学術講演会、 20p-C301-10、2022年9月20日。

Spencer John Spratt, Kenichi Oguchi, Hina Kosakamoto, Fumiaki Obata, Yasuyuki Ozeki, "Probing Methionine Uptake in Live Cells and Tissue by Deuterium Labelling and Stimulated Raman Scattering," The 83rd JSAP Autumn Meeting, 20p-C301-11, September 20, 2022.

Zicong Xu, Kenichi Oguchi, Yoshitaka Taguchi, Shun Takahashi, Yuki Sano, Takaha Mizuguchi, Kazuhiro Katoh, Yasuyuki Ozeki, "Quantum-enhanced stimulated Raman scattering imaging in a high-power regime," The 83rd JSAP Autumn Meeting,  22a-C302-4, September 22, 2022. 

小口 研一、似内 渉、小関 泰之 「オフセット周波数強度変調を用いた光パルスのスペクトル位相計測 」第83回応用物理学会秋季学術講演会、22p-C206-1、2022年9月22日。

高橋 俊、寿 景文、戴 高宇、小関 泰之「広帯域波⻑可変ピコ秒ファイバ光パラメトリック発振器の構築 」第83回応用物理学会秋季学術講演会、22p-C206-8、2022年9月22日。

Aug. 15, 2022

Y. Ozeki delivered an invited talk at International Conference on Raman Spectroscopy (ICORS 2022).

Y. Ozeki, "High-speed multicolor stimulated Raman microscopy," International Conference on Raman Spectroscopy (ICORS2022), NEWT-1-1, Long Beach, Aug. 15, 2022.

July. 31 - Aug. 5, 2022

Yoshitaka Taguchi and Zicong Xu had presentations at CLEO-PR 2022 15th Pacific Rim Conference on Lasers and Electro-Optics.

Y. Taguchi and Y. Ozeki, "In situ detection of phase mismatching in optical parametric process for vacuum squeezing," Pacific Rim Conference on Lasers and Electro-Optics (CLEO-PR 2022), CThP7G-04, Sapporo, Aug. 4, 2022.

Z. Xu, K. Oguchi, Y. Taguchi, Y. Miyawaki, Y. Sano, S. Takahashi, F. Harashima, D. Cheon, K. Katoh and Y. Ozeki, "Stimulated Raman scattering imaging with quantum-enhanced balanced detection," Pacific Rim Conference on Lasers and Electro-Optics (CLEO-PR 2022), CThP7G-03, Sapporo, Aug. 4, 2022.

May 17, 2022

Yoshitaka Taguchi had a presentation at CLEO 2022.

Y. Taguchi, "Phase Locking of Pulsed Squeezed Light Generated by a Single-Pass Optical Parametric Amplifier," Conference on Lasers and Electro-Optics (CLEO2022), JTu3A.23, San Jose, May 17, 2022.

Apr. 26, 2022

We had an in-person welcome party.

Apr. 19, 2022

Our group welcomes Masatsugu Tamura as Project Academic Specialist.

Apr. 13, 2022

Yuki Sano's JOSAB paper appeared in Top Downloads. Congratulations!

Apr. 1, 2022

Our group welcomes new members: Hikaru Akaboshi and Sho Nitanai.

March 25, 2022

We had two presentations at the JSPS autumn conference.

田口富隆、小口研一、徐自聡、チョンドンウク、高橋俊、佐野由季、原島郁弥、小関泰之「シングルパス光パラメトリック増幅で生成されたパルススクイーズド真空場の位相ロック」第69回応用物理学会春季学術講演会、25p-D214-10、2022年3月25日。

浅沼将人、水口高翔、二宮真人、江川麻里子、小関泰之「誘導ラマン散乱によるヒト皮膚のCH伸縮・OH伸縮振動イメージング」第69回応用物理学会春季学術講演会、26a-E204-5、2022年3月26日。

March 25, 2022

Fumiya Harashima and Yusaku Wach got their bachelor degree. Sumiya Kuroda got his degree in medicine. Congratulations!

March 24, 2022

Jingwen Shou and Gaoyu Dai got their doctor degree. Masato Asanuma and Yu Miyawaki got their master degree. Jingwen won Excellent Doctor Thesis Award from EEIS. Congratulations!

March 10, 2022

We had two invited talks and five contributed talks at Photonics West on demand.

Y. Ozeki, "High-speed multicolor stimulated Raman imaging," Photonics West on demand, Advanced Chemical Microscopy for Life Science and Translational Medicine, paper 1197305 (2022). (invited)

Y. Ozeki, "Multicolor stimulated Raman scattering microscopy and its applications," Photonics West on demand, Biomedical Vibrational Spectroscopy 2022: Advances in Research and Industry, paper 1195709 (2022). (invited)

K. Oguchi, Z. Xu, Y. Taguchi, Y. Sano, Y. Miyawaki, K. Katoh, and Y. Ozeki, "Stimulated Raman scattering spectroscopy with quantum-enhanced balanced detection scheme," Photonics West on demand, Optical and Quantum Sensing and Precision Metrology II, paper PC120163D (2022).

Y. Taguchi and Y. Ozeki, "Phase locking scheme for squeezed vacuum generated by single-pass optical parametric amplifier," Photonics West on demand, Optical and Quantum Sensing and Precision Metrology II, paper 1201608 (2022).

Y. Sano, Y. Taguchi, K. Oguchi, and Y. Ozeki, "Numerical analysis of the effects of higher-order modes and loss in waveguide optical parametric amplifiers," Photonics West on demand, Optical and Quantum Sensing and Precision Metrology II; paper 1201609 (2022).

Y. Sano, K. Oguchi, Z. Xu, Y. Taguchi, K. Katoh, and Y. Ozeki, "Precise amplitude and phase matching by integrating spatial light modulation and digital holography for pulsed squeezing," Photonics West on demand, Optical and Quantum Sensing and Precision Metrology II, paper 1201607 (2022).

J. Shou and Y. Ozeki, "Photoswitchable stimulated Raman scattering spectroscopy and microscopy," Photonics West on demand, Biomedical Vibrational Spectroscopy 2022: Advances in Research and Industry, paper 119570A (2022).

Dec. 10, 2021

SRS microscopy book has been published.

J. -X. Cheng, W. Min, Y. Ozeki, D. Polli, 'Stimulated Raman Scattering Microscopy -Techniques and Applications-,' Elsevier, 2021.

Nov. 3, 2021

We had three poster presentations at Quantum Electronics Workshop.

Z. Xu, K. Oguchi, Y. Taguchi, Y. Sano, Y. Miyawaki, D. Cheon, K. Katoh, and Y. Ozeki, "Quantum-enhanced balanced detection in stimulated Raman spectroscopy," 量子エレクトロニクス研究会、ポスター番号5，2021年11月3日。

田口富隆、小関泰之、"Phase-locking scheme for squeezed vacuum generated by single-pass OPA squeezing," 量子エレクトロニクス研究会、ポスター番号6、2021年11月3日。

佐野由季、小関泰之、"Pictorial interpretation of quantum-enhanced measurements with wave functions," 量子エレクトロニクス研究会、ポスター番号7、2021年11月3日。

Sep. 24, 2021

Zicong Xu got his master degree. He won Excellent Master Thesis Award from Department of EEIS. Congratulations!

September 10, 2021

We had several presentations at JSAP conference.

G. Dai, C. S. Goh, Y. Ozeki, "A mode-locked Yb fiber laser with low intensity noise and wavelength tunability," the 82th Autumn Conference of JSAP, paper 10a-N107-3, Sep. 10, 2021.

Z. Xu, K. Oguchi, Y. Sano, Y. Miyawaki, Y. Taguchi, K. Katoh, and Y. Ozeki, "Quantum-enhanced stimulated Raman scattering spectroscopy," the 82th Autumn Conference of JSAP, paper 11a-N307-4, Sep. 11, 2021.

高橋 俊、福井 太一郎、田之村 亮汰、田口 富隆、小関 泰之、中野 義昭、種村 拓夫「位相モニタ集積光フェーズドアレイ素子の検証」第82回応用物理学会秋季学術講演会、11p-N207-12、2021年9月11日。

佐野 由季、田口 富隆、小口 研一、小関 泰之「導波路光パラメトリック増幅における高次モードと損失の影響の解析」第82回応用物理学会秋季学術講演会、12a-N103-4、2021年9月12日。

宮脇 優、小口 研一、徐 自聡、小関 泰之「量子増強誘導ラマン散乱顕微法のための２周波数光検出回路」第82回応用物理学会秋季学術講演会、12p-N103-15、2021年9月12日。

J. Shou and Y. Ozeki, "Photoswitchable stimulated Raman scattering spectroscopy and microscopy," the 82th Autumn Conference of JSAP, paper 21p-P04-3, Sep. 21, 2021.

June 23, 2021

Y. Ozeki gave an invited talk at ICAVS11.

Y. Ozeki, "Multicolor imaging with stimulated Raman scattering," International Conference on Advanced Vibrational Spectroscopy (ICAVS11), Session 1.2.2, June 23, 2021.

June 30, 2021

Yasuyuki Ozeki delivered a keynote lecture at Annual Chautauqua on Nonlinear Optics organized by Garth Simpson and Chi Zhang.

Y. Ozeki, "Multicolor stimulated Raman scattering microscopy -Technologies and applications-," Sixteenth Annual Chautauqua on Nonlinear Optics, Purdue University, June 30, 2021.

June 13, 2021

Yasuyuki Ozeki gave an invited talk at Optoelectronics workshop.

小関泰之「誘導ラマン散乱顕微法の発展とその応用」光エレクトロニクス産学連携研究専門委員会研究会、2022年7月13日。

June 1, 2021

Yasuyuki Ozeki was promoted to a full professor.

May 28, 2021

Yuki Sano received Super Creator Award from Information-technology Promotion Agency. Congratulations!

https://www.ipa.go.jp/files/000091062.pdf

May 12, 2021

Z. Xu presented a poster at CLEO2021.

Z. Xu, K. Oguchi, Y. Sano, Y. Taguchi, K. Katoh, and Y. Ozeki, "Picosecond Squeezing at 844 nm With a Periodically Poled LiTaO3 Waveguide," Conference on Lasers and Electro-Optics, JW1A.44, May 12, 2021.

Apr. 1, 2021

Our group welcomes new members: Shun Takahashi, Fumiya Harashima, and Yusaku Wachi.

Mar. 21, 2021

Natsuha Ochiai got her master degree. Yuki Sano and Kenta Yuba got their bachelor degrees. Congratulations!

Natsuha Ochiai won Excellent Master Thesis Award from Department of EEIS. Yuki Sano got her won Excellent Bachelor Thesis Award and Head of Faculty Special Award. Congratulations!

Mar. 21, 2021

We had two presentations at the JSAP conference.

佐野 由季、小口 研一、徐 自聡、田口 富隆、加藤 一弘、小関 泰之「空間光変調器とデジタルホログラフィーによる波面整形システム」第68回応用物理学会春季学術講演会、19a-Z03-1、2021年3月21日。

Zicong Xu, Kenichi Oguchi, Yuki Sano, Yoshitaka Taguchi, Kazuhiro Katoh, and Yasuyuki Ozeki, "Picosecond pulsed squeezed vacuum generation with a periodically poled stoichiometric LiTaO3 waveguide," the 68th Spring Conference of Japanese Society of Applied Physics, 19a-Z03-8, Mar. 21, 2021.

Mar. 11, 2021

Robert Oda presented at Photonics West 2021.

R. Oda, J. Shou, K. Karasawa, M. Nuriya, M. Yasui, Y. Ozeki, "High-speed super-multiplex imaging of brain tissue," Photonics West, Advanced Chemical Microscopy for Life Science and Translational Medicine 2021, Session 4: Raman/CARS/SRS II, paper 11656-38, Mar. 11, 2021.

Mar. 8, 2021

Yuki Sano received Best student presentation award at the 6th Workshop of IEICE Ultrafast Optoelectronics Technical Group. Congratulations!

Feb. 22, 2021

Our group had three poster presentations at the 6th Workshop of IEICE Ultrafast Optoelectronics Technical Group.

Z. Xu, K. Oguchi, Y. Sano, Y. Taguchi, K. Katoh, and Y. Ozeki, "Pulsed squeezed vacuum generation for quantum-enhanced stimulated Raman scattering microscopy," the 6th Workshop of IEICE Ultrafast Optoelectronics Technical Group, poster #1, Feb. 22, 2021.

G. Dai, K. Katoh, and Y. Ozeki, "Reduction of excess intensity noise of picosecond Yb soliton fiber lasers in >10-mW power regime," the 6th Workshop of IEICE Ultrafast Optoelectronics Technical Group, poster #2, Feb. 22, 2021.

佐野由季、小口研一、徐自聡、田口富隆、加藤一弘、小関泰之「量子増強誘導ラマン散乱顕微鏡における波面整形システムの設計と構築」第6回超高速光エレクトロニクス研究会、ポスター番号3、2021年2月22日。

Feb. 4, 2021

小関による誘導ラマン散乱イメージングの解説講演の動画がYouTubeに掲載されました。

日本物理学会 2020年度公開講座「光を操る。光で操る。」

小関泰之「光パルスを操り生体分子を見る」

Dec. 1, 2020

Dr. Spencer Spratt joined our group as Research Specialist.

Oct. 2, 2020

Our research proposal has been accepted for Grant-in-Aid for Transformative Research Areas (B). This research is led by Prof. Mako Kamiya of Department of Medicine, and conducted by Prof. Mako Kamiya's group, Prof. Fumiaki Obata's group, and our group.

Sep. 23, 2020

Mr. Yoshitaka Taguchi got his master degree. He also won Excellent Thesis Award from Department of EEIS. Congratulations!

Sep. 10, 2020

Our group had one invited talk and one contributed talk at the Japanese Society of Applied Physics Autumn Conference online.

小関 泰之「誘導ラマン散乱による多色分子イメージング」第81回応用物理学会秋季学術講演会シンポジウム「多次元計測技術とデータサイエンスの融合によるバイオイメージング・センシングの進展」、9p-Z06-7、オンライン開催、2020年9月9日。（招待講演）

落合 夏葉、小関 泰之「アキシコンを用いた低損失顕微光学系におけるミスアライメントや波面歪みの影響」第81回応用物理学会秋季学術講演会、10p-Z21-2、オンライン開催、2020年9月10日 。

Aug. 4, 2020

Our group had one contributed talk at CLEO-PR 2020.

G. Dai, "An Yb Fiber Laser Generating Multi-Milliwatt Picosecond Pulses with Nearly Shot-Noise-Limited Intensity Noise,"  CLEO-PR 2020,  August 3-5, 2020.

July 21, 2020

Dr. Robert Oda's dissertation was selected as University of Hawaii's Entry for the National Distinguished Dissertation award in the USA. Congratulations!

Jun 12, 2020

We had farewell & welcome party.

May 31, 2020

Robert Oda got his PhD from Hawaii University. Congratulations!

His doctor thesis is available here. 

May 28, 2020

小関准教授が東京大学工学部よりBest teaching awardを受賞しました。受賞対象の講義は「電気回路理論第一」です。

May. 10-15, 2020

Our group had two poster presentations at CLEO2020.

N. Ochiai and Y. Ozeki, "Realization of ultra-low-loss microscopic optics for quantum-enhanced imaging," CLEO2020, paper JW2A.9, 2020.

Y. Taguchi and Y. Ozeki, "Time-domain analysis on the impacts of chirp and walk-off in picosecond pulsed squeezing," CLEO2020, paper JTh2A.26, 2020.

Apr. 7, 2020

小関准教授が令和2年度 科学技術分野の文部科学大臣表彰 科学技術賞を受賞しました。

Apr. 1, 2020

Our group welcomes Mr. Masato Asanuma, Mr. Keisuke Miura, Ms. Yuki Sano, and Mr. Kento Yuba.

Mar. 24, 2020

Mr. Yu Miyawaki and Mr. Kento Higashitani received their bachelor's degrees. Congratulations!

Feb. 13, 2019

A tutorial article was published in Chemistry & Chemical Industry.

小関泰之「誘導ラマン散乱による分子振動イメージング」化学と工業、vol. 73-2, 115-117 (2020).

Feb. 2, 2020

Our group had two contributed talks at Photonics West.

R. Oda, J. Shou, B. Shiramizu, and Y. Ozeki, "High speed imaging of B-cells by stimulated Raman scattering," Photonics West, BiOS, paper 11252-29, 2020.

J. Shou, F. Hu, R. Oda, W. Min, and Y. Ozeki, "High-speed super-multiplex organelle imaging," Photonics West, BiOS, paper 11252-45, 2020.

Dec. 14, 2019

Y. Ozeki gave an invited talk at the Imaging Frontier Center Symposium of Tokyo University of Science.

小関泰之、飯野敬矩「誘導ラマン散乱顕微法による分子振動イメージングとその応用」イメージングフロンティアセンターシンポジウム、2019年12月14日。

Dec. 12, 2019

We had the 5th team meating of JST-CREST.

Nov. 24, 2019

Y. Ozeki gave an invited talk at Biomedical Raman Imaging 2019.

Y. Ozeki, "Multicolor stimulated Raman scattering microscopy with functional lasers," Biomedical Raman Imaging (BRI2019), Osaka Univ., Nov. 24, 2019.

Nov. 21, 2019

Y. Ozeki gave an invited talk at 医用分光学研究会.

小関泰之「誘導ラマン散乱による分子振動イメージングとその応用」医用分光学研究会、資生堂グローバルリサーチセンター、2019年11月21日。

Nov. 14, 2019

Y. Ozeki had a seminar at 光とレーザーの科学技術フェア.

小関泰之「波長可変パルスファイバーレーザーによる多色分子振動顕微鏡」光とレーザーの科学技術フェア、LA-2-1、科学技術館、2019年11月14日。

Oct. 16, 2019

We had a welcome party for Zicong Xu.

Sept 27, 2019

Y. Ozeki gave an invited talk at the ultrafast optics workshop.

小関泰之「高機能パルスレーザーによる誘導ラマンイメージング」超高速光エレクトロニクス研究会第1回研究会、電気通信大学、2019年9月27日。

Sep. 24, 2019

Our group welcomes Mr. Zicong Xu.

Sep. 21, 2019

Our group had two invited talks and four contributed talks at the Japanese Society of Applied Physics Autumn Conference in Hokkaido.

Y. Ozeki, Y. Suzuki, and K. Goda, "Label-free multicolor imaging flow cytometry with stimulated Raman scattering," The 80th JSAP Autumn Meeting, JSAP-OSA Joint Symposia, 18p-E208-7, Hokkaido, Sep. 18, 2019. (invited)

飯野 敬矩、岡野 和宣、S. W. Lee、山川 健、萩原 宏規、Hong Zhen-Yi、前野 貴則、笠井 宥佑、佐久間 臣耶、早川 健、新井 史人、小関 泰之、合田 圭介、細川 陽一郎、「フェムト秒レーザーを用いた微粒子の高速分取」第80回応用物理学会秋季学術講演会、18p-N304-6、北海道大学、2019年9月18日。

小関 泰之「生体分子イメージングにおける量子増強に向けて」第80回応用物理学会秋季学術講演会シンポジウム「光が拓く量子技術の新展開」、19p-E301-3、北海道大学、2019年9月19日。（招待講演）

落合 夏葉、寿 景文、飯野 敬矩、小関 泰之「量子増強イメージングのための顕微光学系の透過率評価」第80回応用物理学会秋季学術講演会、21a-E207-3、北海道大学、2019年9月21日。

田口 富隆、小関 泰之「パルススクイージングにおけるチャープ及びウォークオフの影響」第80回応用物理学会秋季学術講演会、21a-E207-4、北海道大学、2019年9月21日。

井上 友貴、田中 駿士、鈴木 裕太、小関 泰之「マルチカラー誘導ラマン顕微法のための高安定・高速波長切替パルス光源」第80回応用物理学会秋季学術講演会、21p-E206-4、北海道大学、2019年9月21日。

Sep. 13, 2019

Our group had a graduation party for Liu Hanqin. He received his master's degree. Congratulations!

Aug. 1, 2019

Our group welcomes two freshmen for lab intern. They will conduct molecular imaging with ultrashort lasers.

July 22, 2019

Our group welcomes Prof. Kangwen Yang, Ms. Yue Shen, and Mr. Xu Chen. They will have a short-term visit in our lab to collaborate on fiber laser sources.

June 24, 2019

Our group had a welcome party for new members.

June 19, 2019

We have published a new paper on SRS imaging flow cytometry in PNAS.

Y. Suzuki, K. Kobayashi, Y. Wakisaka, D. Deng, S. Tanaka, C.-J. Huang, C. Lei, C.-W. Sun, H. Liu, Y. Fujiwaki, S. Lee, A. Isozaki, Y. Kasai, T. Hayakawa, S. Sakuma, F. Arai, K. Koizumi, H. Tezuka, M. Inaba, K. Hiraki, T. Ito, M. Hase, S. Matsusaka, K. Shiba, K. Suga, M. Nishikawa, M. Jona, Y. Yatomi, Y. Yalikun, Y. Tanaka, T. Sugimura, N. Nitta, K. Goda, and Y. Ozeki, "Label-free chemical imaging flow cytometry by high-speed multicolor stimulated Raman scattering," Proc. Natl. Acad. Sci. U.S.A., vol. 116, no. 32, pp. 15842-15848, 2019.

Here's the link to UTokyo Press Release in Japanese and English.

June 10, 2019

Our group welcomes Mr. Gaoyu Dai.

May 8, 2019

Our group had two invited talks and two presentations at CLEO2019.

Y. Ozeki, N. Nitta, T. Sugimura, A. Isozaki, H. Mikami, D. Di Carlo, Y. Hosokawa, S. Uemura, and K. Goda, "Intelligent image-activated cell sorting and beyond," Conference on Lasers and Electro-Optics (CLEO2019), paper SM4H.1, May 6, 2019. (invited)

Y. Ozeki, "Functional pulsed fiber lasers for multicolor stimulated Raman scattering microscopy," Conference on Lasers and Electro-Optics (CLEO2019), paper STu4L.3, May 7, 2019. (invited)

J. Shou, R. Oda, S. Tanaka, and Y. Ozeki, "Multicolor stimulated Raman and fluorescence imaging with high-speed programmable tunability," Conference on Lasers and Electro-Optics (CLEO2019), paper STu4H.6, May 7, 2019.

N. Ochiai, J. Shou, and Y. Ozeki, "Beam shaping with axicons for low loss microscopy optics," Conference on Lasers and Electro-Optics (CLEO2019), paper JW2A.83, May 7, 2019.

Apr. 29, 2019

A new paper on beam shaping has been published in JOSAB.

N. Ochiai, J. Shou, and Y. Ozeki, "Axicon-based beam shaping for low-loss nonlinear microscopic optics," J. Opt. Soc. Am. B, vol. 36, no. 5, pp. 1342-1347, 2019.

Apr. 1, 2019

Our group welcomes Mr. Kento Higashitani and Mr. Yu Miyawaki.

Mar. 27, 2019

We enjoyed a graduation party. Takuya Asai, Jingwen Shou, and Shunji Tanaka received their master's degrees, and Tsubasa Asai and Natsuha Ochiai received their bachelor's degrees. Congratulations!

Mar. 9, 2019

Our group had the following presentations at JSAP meeting.

浅井卓也、劉寒沁、小関泰之、林智広、佐藤伸一、中村浩之「ホウ素クラスター化合物の生細胞への取り込みの誘導ラマンイメージング」第66回応用物理学会春季学術講演会、9a-W641-6、2019年3月9日。

落合夏葉、寿景文、小関泰之「低損失顕微光学系のためのアキシコンを用いたビーム整形法」第66回応用物理学会春季学術講演会、9a-W641-7、2019年3月9日。

田中駿士、鈴木祐太、小関泰之「マルチチャネル誘導ラマン顕微法のためのロックインア ンプアレイ」第66回応用物理学会春季学術講演会、9a-W641-8、2019年3月9日。

小関泰之、三上秀治、新田尚、杉村武昭、磯崎瑛宏、Di Carlo Dino、細川陽一郎、上村想太郎、合田圭介「インテリジェント画像活性化細胞選抜法:基本原理と応用展開」第66回応用物理学会春季学術講演会、9a-W641-9、2019年3月9日。

三上秀治、川口誠、小関泰之、合田圭介「疑似停止蛍光撮像法による高感度フローサイトメトリー」第66回応用物理学会春季学術講演会、9a-W641-10、2019年3月9日。

浅井翼、住村和彦、小関泰之「誘導ラマン顕微鏡のための9の字型ピコ秒Erファイバレーザの長波長発振」第66回応用物理学会春季学術講演会、9p-M135-15、2019年3月9日。

Feb. 28, 2019

Y. Ozeki gave an invited talk at Photonics Innovation Seminar in Sendai.

小関泰之「誘導ラマン散乱による生体の振動分光イメージング」フォトニクスイノベーションセミナー、東北大学、2019年2月28日。

Jan. 28, 2019

Y. Ozeki gave an invited talk at KEK workshop.

小関泰之「超短パルスレーザーによる分子振動イメージング」第3回3次元積層半導体量子イメージングセンサ研究会、つくば、2019年1月28日。

Jan. 13, 2019

Y. Ozeki gave an invited talk at the Annual Meeting of the Laser Society of Japan.

小関泰之「誘導ラマン散乱顕微法による高速・無標識生体分光イメージング」レーザー学会第39回年次大会、13pI-1、東海大学、2019年1月15日。（第42回レーザー学会論文賞（業績賞）記念講演）

Dec. 20, 2018

We had the 1st CREST meeting. We shared our research status and discussed our research directions.

Dec. 19, 2018

We enjoyed the year-end & welcome party for Mr. Taguchi.

Dec. 3, 2018

誘導ラマン散乱顕微法に関する解説を執筆しました。

小関泰之「誘導ラマン散乱顕微法」原田慶恵，永井健治編「生きてるものは全部観る！ イメージングの選び方・使い方100＋」第3章, 32, 2018年12月3日。

Nov. 26, 2018

Y. Ozeki presented at the 32nd Sanwaka Seminar.

小関泰之「誘導ラマン散乱(SRS)顕微法による生体分子イメージングとその応用」第32回さんわかセミナー、東京大学、2018年11月26日。

Nov. 21, 2018

Y. Ozeki presented at The Third JST-CREST Symposium “Creation of an Innovative Quantum Technology Platform Based on the Advanced Control of Quantum States.”

小関泰之「量子光源による超高感度分子イメージング」第３回CREST「量子技術」公開シンポジウム、東京大学先端研ENEOSホール、2018年11月21日、22日。

Nov. 6, 2018

東京大学新聞に小関准教授のインタビュー記事「教員の振り返る東大生活」が掲載されました。

Oct. 18, 2018

Y. Ozeki gave an invited talk at the JSAP Photonics division seminar.

小関泰之「細胞ビッグデータ解析に向けた高速分子振動イメージング」フォトニクス分科会セミナー、InterOpto、幕張、2018年10月18日。

Oct. 10, 2018

Y. Ozeki gave an invited talk at CBI conference.

小関泰之、「誘導ラマン散乱(SRS)を用いた高速振動分光イメージング」CBI学会シンポジウム「先端計測技術」, FS-13-1, 船堀、2018年10月10日。

Sep. 26, 2018

Y. Ozeki delivered an invited talk at D2T Symposium.

Y. Ozeki, "Large-scale biological imaging of cells with ultrafast lasers," D2T Symposium, Tokyo, Japan, Sep. 26, 2018.

Sep. 24, 2018

Our lab welcomes Mr. Yoshitaka Taguchi and Mr. Quiang Yu as Graduate students.

Sep. 20, 2018

J. Shou and Y. Ozeki, "Dual-polarization hyperspectral stimulated Raman scattering microscopy," Autumn Meeting of Jpn. Soc. Appl. Phys., 20p-PB6-7, Sep. 20, 2018.

劉寒沁, 浅井卓也, 寿景文, 小関泰之「誘導ラマン散乱顕微鏡のためのスペクトル分離法の性能比較」応用物理学会秋季学術講演会、20p-PB6-8、名古屋国際会議場、2018年9月20日。

Sep. 18, 2018

Our research proposal was accepted to JST-CREST, Quantum Technology Project.

Sep. 12, 2018

Y. Ozeki gave an invited talk at the annual meeting of Japan Society of Analytical Chemistry.

小関泰之「誘導ラマン散乱による高速振動分光イメージング」日本分析化学会、I1007R、東北大学、2018年9月12日。

Sep. 6, 2018

Special Topic on Coherent Raman spectroscopy and imaging has been published in APL Photonics.

Y. Ozeki edited the topic as a guest editor together with Prof. Goda, Prof. Zumbusch, and Prof. Huang.

You can find cutting-edge technologies on Raman spectroscopy and imaging.

Sep. 5, 2018

We had a welcome party for Robert Oda.

Aug. 29, 2018

Our paper on a low-noise pulsed fiber laser has been published in Jpn. J. Appl. Phys.

H. Yoshimi, K. Sumimura, and Y. Ozeki, "An Er fiber laser generating multi-milliwatt picosecond pulses with ultralow intensity noise," Jpn. J. Appl. Phys., vol. 57, no. 10, p. 108001 (2018).

Aug. 28, 2018

Our paper on image-activated cell sorting has been published in Cell. Press release is available here. This is an exciting achievement of massive collaboration with interdisciplinary research team in ImPACT project.

N. Nitta, T. Sugimura, A. Isozaki, H. Mikami, K. Hiraki, S. Sakuma, T. Iino, F. Arai, T. Endo, Y. Fujiwaki, H. Fukuzawa, M. Hase, T. Hayakawa, K. Hiramatsu, Y. Hoshino, M. Inaba, T. Ito, H. Karakawa, Y. Kasai, K. Koizumi, S. Lee, C. Lei, M. Li, T. Maeno, S. Matsusaka, D. Murakami, A. Nakagawa, Y. Oguchi, M. Oikawa, T. Ota, K. Shiba, H. Shintaku, Y. Shirasaki, K. Suga, Y. Suzuki, N. Suzuki, Y. Tanaka, H. Tezuka, C. Toyokawa, Y. Yalikun, M. Yamada, M. Yamagishi, T. Yamano, A. Yasumoto, Y. Yatomi, M. Yazawa, D. Di Carlo, Y. Hosokawa, S. Uemura, Y. Ozeki, and K. Goda, “Intelligent image-activated cell sorting,” Cell, vol. 175, pp. 1-11, 2018.

Aug. 24, 2018

Y. Ozeki has been introduced at the website of Department of Engineering.

Aug. 8, 2018

Our group welcomes Robert Oda from Hawaii University as a special research student. He will be engaged in Raman imaging analysis of cells and tissues.

Aug. 1, 2018

Our group welcomes lab intern students, Mr. Serikawa, Mr. Terashima, and Mr. Suzuki. They will conduct molecular imaging with ultrashort lasers in this week.

July 17, 2018

A paper on dual-polarization SRS has been published in Appl. Phys. Lett.

J. Shou and Y. Ozeki, “Dual-polarization hyperspectral stimulated Raman scattering microscopy,” Appl. Phys. Lett., vol. 113, p. 033701, 2018.

July 5, 2018

A review paper on the collaborative work of ImPACT program has been published in Nature Protocols.

C. Lei, H. Kobayashi, Y. Wu, M. Li, A. Isozaki, A. Yasumoto, H. Mikami, T. Ito, N. Nitta, T. Sugimura, M. Yamada, Y. Yatomi, D. Di Carlo, Y. Ozeki and K. Goda, “High-throughput imaging flow cytometry by optofluidic time-stretch microscopy,” Nat. Protoc., vol. 13, pp. 1603–1631, 2018.

June 26, 2018

Y. Ozeki gave an invited talk at RamanFest2018.

Y. Ozeki, "High-speed multicolor stimulated Raman imaging," RamanFest2018, E-2, Tokyo, June 26, 2018.

June 14, 2018

Our invited paper has been published in IEEE Journal of Selected Topics in Quantum Electronics.

Y. Ozeki, T. Asai, J. Shou, and H. Yoshimi, "Multicolor stimulated Raman scattering microscopy with fast wavelength-tunable Yb fiber laser," IEEE J. Sel. Top. Quantum Electron., vol. 25, art. no. 7100211, 2018. (invited paper)

June 1, 2018

小関准教授がレーザー学会より受賞しました。

平成30年 レーザー学会 論文賞「解説部門」「誘導ラマン散乱顕微法による高速・無標識生体分光イメージング」

May 28, 2018

Y. Ozeki presented a plenary talk at APOS2018.

Y. Ozeki, "Molecular imaging of cells and tissues by multicolor stimulated Raman scattering microscopy," Asia-Pacific Conference on Optical Sensors (APOS2018), Plenary Talk, Matsue, May 28, 2018.

May 22, 2018

日本分光学会で招待講演を行いました。

小関泰之「誘導ラマン散乱による高速・多色・振動分光イメージング」日本分光学会年次講演会シンポジウム「先端的振動分光法の新しい技術と応用」、慶應大学日吉キャンパス、2018年5月22日。

May 16, 2018

T. Asai and H. Yoshimi gave oral and a poster presentations at CLEO2018.

T. Asai, H. Yoshimi, J. Shou, T. Fujita, Y. Ozeki, "Generation of wavelength-tunable picosecond pulses with polarization-maintaining Yb figure-nine laser for stimulated Raman scattering microscopy," Conference on Lasers and Electro-Optics (CLEO2018), paper SW4K.2, May 16, 2018.

H. Yoshimi, K. Sumimura, and Y. Ozeki, "An Er fiber laser generating multi-milliwatt picosecond pulses with nearly shot-noise-limited intensity noise," Conference on Lasers and Electro-Optics (CLEO2018), paper JTh2A, May 17, 2018.

Also, Y. Ozeki is a coauthor of the following invited talk.

C. Lei, Y. Ozeki, and K. Goda, "Optofluidic Time-stretch Microscopy for Precision Medicine," Conference on Lasers and Electro-Optics (CLEO2018), paper AF3Q.3, May 18, 2018.

May 10, 2018

量子生命科学研究会でポスター発表を行いました。

小関泰之、鈴木祐太、合田圭介「誘導ラマンイメージングで探る細胞の多様性」第2回量子生命科学研究会、ポスター番号30、2018年5月10日。

Apr.  27, 2018

We had Farewell & Welcome party.

Apr. 11, 2018

Y. Ozeki gave an invited talk at ECONOS 2018.

Y. Ozeki, Y. Suzuki, Y. Wakisaka, and K. Goda, "High-speed multicolor metabolite imaging with stimulated Raman scattering," ECONOS2018, Milano, Apr. 11, 2018.

Mar. 28, 2018

We had a graduation & farewell party. Congratulations for the graduation of Mr. Inoue & Mr. Yoshimi!

Mar. 20, 2018

H. Yoshimi presented a poster at JSAP Conference.

吉見拓展, 住村和彦, 小関泰之「誘導ラマン散乱顕微鏡のための低雑音な 9 の字型 Er ファイバレーザ」応用物理学会春季学術講演会、20p-P3-3、早稲田大学、2018年3月20日。

Jan. 30, 2018

Y. Suzuki gave an invited talk and a contributed talk at Photonics West, BiOS.

Y. Suzuki, K. Goda, and Y. Ozeki "High-speed SRS imaging," Photonics West 2018, BiOS, Paper 10498-56, San Francisco, Jan. 30, 2018.

Y. Suzuki, K. Kobayashi, D. Deng, Y. Wakisaka, K. Goda, and Y. Ozeki, "Multicolor stimulated Raman imaging of live microalgal cells using fast wavelength-switched laser pulses," Photonics West 2018, BiOS, Paper 10505-23, San Francisco, Jan. 30, 2018.

Jan. 25, 2018

Y. Ozeki presented an invited talk at the Annual Meeting of Laser Society of Japan.

小関泰之「誘導ラマン散乱顕微鏡応用に向けた9の字型ファイバーレーザーの開発」第38回レーザー学会年次大会、25aVII-6、京都市、2018年1月25日。

Dec. 1, 2017

Sekiya Takeichiro has joined our group as a technical staff. Welcome!

Nov. 28, 2017

Video clips of Y. Ozeki's interview have been posted to the website of the Optical Society (OSA).

Video 1

Video 2

Nov. 1, 2017

Fujiwaki Yasuhiro has come back to our group as a technical staff. Welcome!

Nov. 1, 2017

We had the following presentations at OPJ2017.

J. Shou, D. Deng, T. Asai, and Y. Ozeki, "Dual-polarization stiulated Raman scattering microscopy," OPJ 2017, 31pP15, 2017年10月31日。

浅井卓也、吉見拓展、寿景文、小関泰之「9の字型レーザを用いた安定な波長可変ス トークス光源による誘導ラマン顕微鏡」OPJ 2017, 1pP13, 2017年11月1日。

Y. Ozeki, Y. Suzuki, Y. Wakisaka, K. Kobayashi, D. Deng, and K. Goda, "High-speed stimulated Raman microscopy for label-free metabolite imaging of microalgae," OPJ 2017, 1aAS5, 2017年11月1日 。（招待講演）

Oct. 26, 2017

小関准教授らによる解説記事が電気学会誌に掲載されました。

小関泰之、井手口拓郎、合田圭介「高速ラマン計測による生命科学へのアプローチ」電気学会誌, vol. 137, no. 11, pp. 768-771, 2017.

Oct. 1, 2017

Graduate Student Liu Hanqin, and Research Student Yu Qiang have joined our group. Welcome!

Sep. 22, 2017

Y. Ozeki gave an invited talk at the annual meeting of Biophysical Society of Japan.

Y. Ozeki, "High-speed imaging of metabolites with stimulated Raman scattering microscopy," The 55th annual meeting of Biophysical Society of Japan, Symposium "Biological information probed by optical microscopes using scattering and absorption", 3SAA-5, Kumamoto, Japan, Sep. 21, 2017.

Aug. 25, 2017

Prof. Khanh Kieu from University of Arizona visited our lab to give a seminar talk. We are excited to learn his recent works on fiber lasers and nonlinear-optical microscopy.

Aug. 24, 2017

Prof. Fu-Jen Kao and Mr. Subir Das from National Yang-Ming University (Taiwan) visited our lab. We had stimulating discussions.

Aug. 17, 2017

Y. Ozeki gave an invited talk at the annual meeting of the surface science society of Japan.

小関泰之「誘導ラマン顕微鏡による高速・無標識生体イメージング」2017年真空・表面科学合同講演会シンポジウム「バイオ表面・界面、細胞、生体組織のオペランド計測」, 1Ba01, 横浜市立大学、2017年8月17日。

Aug. 2, 2017

Prof. H. Niikura of Waseda University gave us a seminar talk on attosecond science. Exciting talk!

July 30, 2017

小関准教授による研究紹介記事が「光学」誌に掲載されました。

小関泰之、鈴木祐太、脇坂佳史、合田圭介「誘導ラマン散乱によるミドリムシの1細胞代謝物解析」光学、vol 46, no. 6, p. 247 (2017).

June 30, 2017

Dr. D. Deng has completed his postdoctoral position in our lab. His work will appear in the near future.

June 19, 2017

A collaboration paper on the detection of aggregated platelet has been published. This is an achievement of ImPACT project.

Y. Jiang, C. Lei, A. Yasumoto, H. Kobayashi, Y. Aisaka, T. Ito, B. Guo, N. Nitta, N. Kutsuna, Y. Ozeki, A. Nakagawa, Y. Yatomi, and K. Goda, "Label-free detection of aggregated platelets in blood by machine-learning-aided optofluidic time-stretch microscopy," Lab. Chip, vol. 17, pp. 2426-2434, 2017.

June 15, 2017

小関准教授の解説記事が「レーザー研究」誌に掲載されました。

小関泰之「誘導ラマン散乱顕微法による高速・無標識生体分光イメージング」レーザー研究, vol. 45, pp. 328-332, 2017.

June 1, 2017

小関准教授の解説記事が「光アライアンス」誌に掲載されました。

小関泰之・鈴木祐太・脇坂佳史・合田圭介「誘導ラマン散乱顕微法による生きた微細藻類の１細胞代謝物解析」光アライアンス、vol. 28, no. 6, p. 11, 2017.

May 25, 2017

Y. Suzuki won 2017 Young Scientist Presentation Award of The Spectroscopical Society of Japan. Congratulations!

May 24, 2017

Y. Suzuki gave a talk at International Symposium of Spectroscopical Society of Japan.

Y. Suzuki, Y. Wakisaka, T. Ito, K. Goda, and Y. Ozeki, "Metabolite imaging of live microalgal cells by multicolor stimulated Raman scattering microscopy," The International Symposium of Spectroscopical Society of Japan in 2017, "Raman spectroscopy for biomedical applications", Waseda University, May 24, 2017.

May 15, 2017

Y. Ozeki presented at CLEO2017.

T. Fujita and Y. Ozeki, "Fast Wavelength-Switchable Figure-Nine Er Fiber Laser Using a Galvanometer-Driven Intracavity Filter," CLEO2017, SM4L.6, San Jose, U.S.A., 2017.

May 12, 2017

小関准教授の解説記事が「バイオサイエンスとインダストリー」誌に掲載されました。

小関泰之、合田圭介「目で見るバイオ：微細藻類による物質生産のための高速・無標識・一細胞代謝物イメージング」バイオサイエンスとインダストリー、vol. 75, no. 3, pp. 204-205, 2017.

Apr. 31, 2017

小関准教授の解説記事が日本光学会の機関紙「光学」に掲載されました。

小関泰之「誘導ラマン散乱顕微鏡におけるファイバーレーザー技術の活用」光学, vol. 46, no. 4, pp. 131-136 (2017).

Apr. 25, 2017

電気電子工学科の研究紹介イベントEEIC*findにおける小関准教授の講演「光を駆使して細胞を見る」がYouTubeにアップされました。

Apr. 30, 2017

A collaboration paper on the high-speed imaging with compressive sensing has been published. This is an achievement of ImPACT project.

C. Lei, Y. Wu, A. C. Sankaranarayanan, S. -M. Chang, B. Guo, N. Sasaki, H. Kobayashi, C. -W. Sun, Y. Ozeki, and K. Goda, "GHz optical time-stretch microscopy by compressive sensing," IEEE Photon. J., vol. 9, no. 2, p. 1-15, 2017.

Apr. 11, 2017

A collaboration paper on the high-speed screening of micro algae has been published. This is an achievement of ImPACT project.

B. Guo, C. Lei, H. Kobayashi, T. Ito, Y. Yalikun, Y. Jiang, Y. Tanaka, Y. Ozeki, and K. Goda, "High-throughput, label-free, single-cell, microalgal lipid screening by machine-learning-equipped optofluidic time-stretch quantitative phase microscopy," Cytometry Part A, vol. 91, pp. 494-502, 2017.

Apr. 5, 2017

We had Hanami party at Univ. of Tokyo, Hongo campus.

Apr. 1, 2017

Member list has been updated.

Mar. 31, 2017

K. Kobayashi has got Master's degree.

T. Asai, K. Okawa, S. Tanaka, T. Nemoto, and T. Fujita have got Bachelor's degree.

Mar. 23, 2017

Y. Ozeki gave an invited talk at AnalytiX-2017.

Y. Ozeki, "Stimulated Raman Scattering Microscopy for Label-free Chemical Imaging of Cells and Tissues," AnalytiX-2017, Session 3-2-6, Fukuoka, Japan, Mar. 23, 2017.

Mar. 21, 2017

Y. Suzuki won the PiPhotonics Best Paper Award of ‘High-Speed Biomedical Imaging and Spectroscopy II: Toward Big Data Instrumentation and Management’ Conference at Photonics West 2017. Congratulations!

Mar. 17, 2017

K. Kobayashi and T. Fujita presented at JSAP spring conference.

小林航也、鈴木祐太、デンディンハン、脇坂佳史、合田圭介、小関泰之「マルチカラー誘導ラマン散乱顕微鏡のための超高速波長切り替えレーザー光源の改良」第64回応用物理学会春季学術講演会、17a-413-7、2017年3月17日。

藤田 敏郎、小関 泰之「ガルバノスキャナを用いた高速波長切り替えfigure-9レーザ」第64回応用物理学会春季学術講演会、17a-P2-4、2017年3月17日。

Jan. 30, 2017

Y. Suzuki gave a talk at Photonics West 2017.

Y. Suzuki, Y. Wakisaka, O. Iwata, A. Nakashima, T. Ito, M. Hirose, R. Domon, M. Sugawara, N. Tsumura, H. Watarai, T. Shimobaba, K. Suzuki, K. Goda and Y. Ozeki, "High-speed stimulated Raman scattering microscopy for studying the metabolic diversity of motile Euglena gracilis," Proc. SPIE 10076, High-Speed Biomedical Imaging and Spectroscopy: Toward Big Data Instrumentation and Management II, 1007604 (February 22, 2017). doi:10.1117/12.2250455

Jan. 24, 2017

A paper on chemically-activatable vibrational probe has been published. Thanks for fruitful collaboration with Okamoto-Yamaguchi lab at RCAST.

S. Yamaguchi, T. Matsushita, S. Izuta, S. Katada, M. Ura, T. Ikeda, H. Hayashi, Y. Suzuki, K. Kobayashi, K. Tokunaga, Y. Ozeki, and A. Okamoto, “Chemically-activatable alkyne-tagged probe for imaging microdomains in lipid bilayer membranes,” Sci. Rep. 7, Article number: 41007 (2017). doi:10.1038/srep41007

Jan. 18, 2017

Y. Ozeki gave a talk at Tokyo University of Science.

小関泰之「誘導ラマン顕微鏡 による生体の無標識観察」イメージングフロンティアセミナー、東京理科大学、2017年1月18日。

Dec. 22, 2016

研究室の大掃除を行いました。その後、綺麗になった実験室で記念撮影を行いました。

Dec. 21, 2016

小関准教授が第20回（平成28年度）「丸文学術賞」を受賞することになりました。

研究題目は「高速誘導ラマン分光イメージング法の開発と医学・生物学応用」です。

Dec. 21, 2016

鈴木祐太博士研究員が、第2回OPJ2016優秀講演賞を受賞しました。

Dec. 9, 2016

Springer NatureによるインタビューがHuffingtonpostに掲載されました。

Dec. 5, 2016

Prof. David Ottaway from The University of Adelaide gave us a seminar talk entitled "The observation of binary black holes and the detection of gravitational waves by LIGO, the world's largest optical instrument." 

Nov. 15, 2016

A collaboration paper on the high-throughput optofluidic imaging has been published. This is an achievement of ImPACT project.

B. Guo, C. Lei, T. Ito, Y. Jiang, Y. Ozeki and K. Goda, "High-throughput accurate single-cell screening of Euglena gracilis with fluorescence-assisted optofluidic time-stretch microscopy," PLOS ONE, vol. 11, p. e0166214, 2016.

Nov. 13, 2016

Y. Ozeki gave an invited talk at Southwest Regional Meeting of Americas Chemical Society.

Y. Ozeki, Y. Wakisaka, Y. Suzuki, and K. Goda, "Metabolite imaging of microalgae with stimulated Raman scattering microscopy," 72nd Annual Southwest Regional Meeting of Americas Chemical Society, Symposium on Applications of Photonics in Energy & Life Sciences, paper 460, Galveston, TX, Nov. 13, 2016.

Nov. 10, 2016

Y. Ozeki gave an invited talk at Euglena workshop.

小関泰之、鈴木祐太、脇坂佳史、合田圭介「誘導ラマン散乱による生きたユーグレナの1細胞代謝物解析」第32回ユーグレナ研究会、東大農学部、2016年11月10日。

Nov. 2, 2016

K. Kobayashi and Dr. Y. Suzuki presented at OPJ2016.

小林航也、鈴木祐太、デンディンハン、脇坂佳史、合田圭介、小関泰之「高速マルチカラー誘導ラマン散乱顕微鏡のための超高速波長切り替えレーザー光源」OPJ2016, 2aA5, 筑波大学東京キャンパス、2016年11月2日。

Y. Suzuki, Y. Wakisaka, O. Iwata, A. Nakashima, K. Suzuki, T. Ito, M. Hirose, R. Domon, M. Sugawara, N. Tsumura, H. Watarai, T. Shimobaba, K. Goda, Y. Ozeki, "Label-free imaging and statistical analysis of the metabolic heterogeneity of live Euglena gracilis with stimulated Raman scattering microscopy," OPJ2016, 2aA6, 筑波大学東京キャンパス、2016年11月2日。

Oct. 21, 2016

Y. Ozeki gave an invited talk at UUO Salon.

小関泰之「パルスレーザーを駆使して細胞を染めずに見る」第12回UUOサロン、板橋区立グリーンホール、2016年10月21日。

Oct. 12, 2016

Y. Ozeki gave an invited talk at OITDA-PDASG workshop.

小関泰之「誘導ラマン散乱を用いた無染色生体顕微法とその応用」光産業技術振興協会 フォトニックデバイス・応用技術研究会 第３回研究会、機械振興会館、2016年10月12日。

Sep. 29, 2016

Y. Ozeki gave an invited talk at the Microoptics Group Symposium of Japan Society of Applied Physics.

小関泰之、脇坂佳史、鈴木祐太、合田圭介「高速誘導ラマン顕微鏡とその微細藻類の代謝物解析への応用」第141回微小光学研究会〜メディカル・バイオフォトニクスに革新をもたらす微小光学〜、早稲田大学、2016年9月29日。

Sep. 28, 2016

Our paper in Nature Microbiology has been selected as a cover in the Oct. issue.

Sep. 27, 2016

Our review article appeared in Oct. Issue of OplusE.

三上秀治、Lei Cheng、鈴木祐太、小関泰之、合田圭介「超高速イメージングで生命科学」OplusE、pp. 922-926、2016年10月。

Sep. 19, 2016

Y. Ozeki gave an invited talk at SciX2016.

Y. Ozeki, "High-speed multicolor chemical imaging with stimulated Raman scattering," SciX2016, paper 47, Minneapolis, Sep. 19, 2016.

Sep. 14-15, 2016

Our group had three presentations at the Japanese Society of Applied Physics (JSAP) Autumn Meeting.

Y. Ozeki, "High-speed stain-free biomedical microscopy utilizing optical pulses," Symposium of Photonics Division, "Researchers pioneering next-generation photonics", the 77th JSAP Autumn Meeting, 14p-A41-7, Niigata, Japan, Sep. 14, 2016. (invited)

Y. Suzuki, Y. Wakisaka, O. Iwata, A. Nakashima, K. Suzuki, T. Ito, M. Hirose, R. Domon, M. Sugawara, N. Tsumura, H. Watarai, T. Shimobaba, K. Goda, and Y. Ozeki, "High-speed stimulated Raman scattering microscopy for single-cell analysis of metabolites in live Euglena gracilis," the 77th JSAP Autumn Meeting, 14p-C42-17, Niigata, Japan, Sep. 14, 2016.

K. Kobayashi, Y. Suzuki, D. Deng, Y. Wakisaka, K. Goda, and Y. Ozeki, "High-speed multicolor stimulated Raman scattering microscopy by fast wavelength switching," the 77th JSAP Autumn Meeting, 15a-P1-7, Niigata, Japan, Sep. 15, 2016.

Also Y. Ozeki is coauthor of the following presentations:

H. Mikami, J. Harmon, H. Kobayashi, Y. Ozeki, and K. Goda, "Speed enhancement in frequency-division-multiplexed confocal microscopy by multi-line focusing," the 77th JSAP Autumn Meeting, 15a-C31-6, Niigata, Japan, Sep. 15, 2016.

T. Niinomi, Y. Nomura, L. Jin, M. Yamanaka, Y. Ozeki, V. Sonnenschein, H. Tomita1, T. Iguchi1, N. Nishizawa, "1.0-2.1um octave-spanning, coherent SC comb based on Er-doped ultrashort pulse fiber laser," the 77th JSAP Autumn Meeting, 15a-C301-1, Niigata, Japan, Sep. 15, 2016.

M. Togashi, T. Nagaike, L. Jin, Y. Sakakibara, E. Omoda, H. Kataura, Y. Ozeki, N. Nishizawa, "All polarization-maintaining fiber laser-based optical frequency comb using SWNT," the 77th JSAP Autumn Meeting, 15a-C301-2, Niigata, Japan, Sep. 15, 2016.

Sep. 9, 2016

Our paper in collaboration with Shiseido has been published.

M. Egawa, K. Tokunaga, J. Hosoi, S. Iwanaga, and Y. Ozeki, "In situ visualization of intracellular morphology of epidermal cells using stimulated Raman scattering microscopy," J. Biomed. Opt., vol. 21, no. 8, p. 086017, 2016.

Aug. 8, 2016

Our blog post has been uploaded to the community site of Nature Microbiology.

Y. Ozeki and K. Goda, "Interdisciplinary engineering efforts elucidate the metabolic heterogeneity of microalgae," 'Behind the paper' channel, Community site of Nature Microbiology, Aug. 8, 2016.

Aug. 2, 2016

Our paper on the analysis of Euglena gracilis with our molecular imaging method for exploring microalgal heterogeneity has been published in Nature Microbiology. 

Y. Wakisaka, Y. Suzuki, O. Iwata, A. Nakashima, T. Ito, M. Hirose, R. Domon, M. Sugawara, N. Tsumura, H. Watarai, T. Shimobaba, K. Suzuki, K. Goda and Y. Ozeki, "Probing the metabolic heterogeneity of Euglena gracilis with stimulated Raman scattering microscopy," Nature Microbiology, vol. 1, article no. 16124, 2016.

This paper is covered by several press releases:

Graduate School of Engineering, Graduate School of Science, Japan Science and Technology Agency, and Nikkei Press Release.

我々が開発した分子イメージング法を用いて生きたままのミドリムシに含まれる栄養分を解析し、「微生物の個性を測る計測手法」として実証した研究論文がNature Microbiology誌に掲載されました。内閣府ImPACT合田プロジェクト内の超異分野融合領域研究です。

July 29, 2016

Y. Ozeki gave an invited talk at the Thin Film and Surface Physics Seminar.

小関泰之「誘導ラマン顕微鏡による高速・無標識生体イメージング」薄膜・表面物理セミナー、早稲田大学、2016年7月29日。

July 7, 2016

Y. Ozeki gave an invited talk at the laser microscopy symposium.

小関泰之「誘導ラマン顕微鏡による無標識イメージングの現状と展開」レーザ顕微鏡研究会、理化学研究所、2016年7月7日。

July 1, 2016

Y. Ozeki gave an invited talk at the 32nd Annual Meeting of the Japan Society of Drug Delivery System.

小関泰之「誘導ラマン散乱による生体の高速・無標識イメージング」第32回日本DDS学会学術集会、シンポジウムS5-3、グランパス、2016年7月1日。 

Jun. 24, 2016 

Y. Ozeki gave an invited talk at Optics Symposium. (in Japanese) 

小関泰之「誘導ラマン散乱顕微鏡による高速無標識イメージング」第41回光学シンポジウム、講演番号17、東京大学駒場第２キャンパス、2016年6月24日。 

Jun. 7, 2016 

Y. Ozeki presented a poster at CLEO:2016. 

Y. Ozeki and T. Fukazu, "A wavelength-tunable, polarization-maintaining picosecond figure-nine fiber laser," CLEO:2016, JTu5A.119, San Jose, June 7, 2016 

Apr. 28, 2016 

Y. Ozeki gave an invited talk at the 55th Annual Conference of Japanese Society for Medical and Biological Engineering. (in Japanese) 

小関泰之「誘導ラマン散乱による高速分子振動イメージングとその応用」第55回生体医工学会大会、3OS2-1-2、富山国際会議場、2016年4月28日。 

Apr. 26, 2016 

A new paper has been published. 

K. Tokunaga, Y. -C. Fang, H. Yokoyama, and Y. Ozeki, "Generation of synchronized picosecond pulses by a 1.06-µm gain-switched laser diode for stimulated Raman scattering microscopy," Opt. Express, vol. 24, no. 9, pp. 9617-9628 (2016). 

Apr. 22, 2016 

We had a guest talk entitled "SRS imaging of Gleevec in living cell -Challenges and potential applications of SRS in drig discovery-" by Dr. Jing Zhou (Novartis Institutes for Biomedical Research). 

Apr. 8, 2016 

We had a guest talk entitled "Applying Raman spectroscopy to biological studies" by Dr. Liang-da Chiu (Univ. of Tokyo). 

Apr. 1, 2016 

Ms. Yoriko Baba joined as a secretary. 

Apr. 1, 2016 

New students have joined to our group. 

Mar. 31, 2016 

Mr. Kyoya Tokunaga graduated with master degree. 

Mar 22, 2016 

Y. Ozeki gave an invited talk at Focus on Microscopy (FOM2016). 

Y. Ozeki, "Stimulated Raman scattering microscopy: Development of imaging system and pulsed lasers," Focus on Microscopy (FOM2016), Taipei, Taiwan, Mar. 22, 2016. 

Mar 21, 2016 

K. Tokunaga gave a talk at Japanese Society of Applied Physics (JSAP) spring conference. 

徳永 京也、房 宜澂、横山 弘之、小関 泰之「利得スイッチング駆動半導体レーザを用いた誘導ラマン顕微鏡による生細胞イメージング」応用物理学会春季講演会、21p-S422-9、2016年3月21日。 

Mar. 1, 2016 

Y. Ozeki gave an invited talk at Optics-photonics Device and Fabrication (ODF2016). 

Y. Ozeki, "Functional laser sources for multicolor, stain-free biomedical imaging with SRS microscopy," The 10th International Conference on Optics Design and Fabrication (ODF2016), 1S4-02, Weingarten, Germany, Mar. 1, 2016. 

Feb 13 and 14, 2016 

Yuta Suzuki and Kyoya Tokunaga gave a talk at Photonics West, BiOS2016. 

Y. Wakisaka, Y. Suzuki, K. Tokunaga, M. Hirose, R. Domon, R. Akaho, M. Kuroshima, N. Tsumura, T. Shimobaba, O. Iwata, K. Suzuki, A. Nakashima, Keisuke Goda, and Yasuyuki Ozeki, "Label-free chemical imaging of live euglena gracilis by high-speed stimulated Raman scattering spectral microscopy," Photonics West, BiOS, paper 9720-16, San Francisco, Feb. 13, 2016. 

K. Tokunaga, Yi-Cheng Fang, H. Yokoyama, and Y. Ozeki, "Synchronized and timing-stabilized pulse generation from a gain-switched laser diode for stimulated Raman scattering microscopy," Photonics West, BiOS, paper 9712-20, San Francisco, Feb. 14, 2016. 

Dec 11 and 12, 2015 

Ozeki group hosted PJ3/PJ4 meeting of ImPACT program. 

Nov. 20, 2015 

Y. Ozeki gave an invited talk at Symposium of Kansai Chapter of Spectroscopical Society of Japan. 

小関泰之「誘導ラマン分光イメージングの進展」日本分光学会関西支部シンポジウム「最近の分光学の進歩に関する講演会-顕微と分光-」大阪産業大学梅田サテライトキャンパス、2015年11月20日。 

Oct. 28, 2015 

K. Tokunaga gave a talk at Optics and Photonics Japan 2015. 

徳永 京也、房 宜澂、草間裕太、横山弘之、小関泰之「誘導ラマン顕微鏡応用に向けた利得スイッチングLDパルスのタイミング安定化」OPJ2015, 28aC4, 2015年10月28日。 

Oct. 27, 2015 

Y. Ozeki gave a talk at Biophotonics Japan 2015. 

Y. Ozeki, K. Tokunaga, Y. -C. Fang, Y. Kusama, and H. Yokoyama, "Stimulated Raman multispectral imaging with two-color picosecond laser pulses from a gain-switched laser diode and a Ti:sapphire laser," Biophotonics Japan, paper 9792-2, Tsukuba Univ. Tokyo Campus, Oct. 27, 2015. 

Oct. 15, 2015 

A collaboration paper with Goda lab has been published. 

M. Ugawa, C. Lei, T. Nozawa, T. Ideguchi, D. Di Carlo, S. Ota, Y. Ozeki, and K. Goda, “High-throughput optofluidic particle profiling with morphological and chemical specificity,” Opt. Lett., vol. 40, no. 20, pp. 4803-4806 (2015). 

Sep. 14, 2015 

K. Tokunaga gave an oral presentation at JSAP conference. 

徳永 京也、房 宜澂、草間 裕太、横山 弘之、小関 泰之「1.06-μm 帯利得スイッチング駆動DFB-LD とチタンサファイアレーザーを用いた誘導ラマン分光イメージング」第76回応用物理学会秋季学術講演会、14p-2N-1、名古屋国際会議場、2015年9月14日。 

Aug. 27, 2015 

K. Tokunaga gave an oral presentation at CLEO-PR2015 in Busan, Korea. 

K. Tokunaga, Y. -C. Fang, Y. Kusama, H. Yokoyama, and Y. Ozeki, "Experimental investigation of timing jitter of 1.06-µm gain switched laser diode for stimulated Raman scattering microscopy," CLEO-PR 2015, 27H2-3, Busan, Korea, August 27, 2015. 

July 20, 2015 

Ozeki gave an invited talk at Topical Problems of Biophotonics. 

Y. Ozeki, “Two-color picosecond laser sources for stimulated Raman spectral microscopy,” Topical Problems of Biophotonics, Novel Laser Applications in Biomedicine, Nizhny Novgorod, July 20, 2015. 

July 15, 2015 

Ozeki gave an invited talk at Optical Society of Korea summer annual meeting. 

Y. Ozeki, “Stimulated Raman scattering microscopy for high-speed label-free imaging,” Optical Society of Korea Summer Annual Meeting, OSK-OSJ Joint Symposium on Biophotonics, Gyeongju, Korea, July 15, 2015. 

July 1, 2015 

Dr. Deng Dinghuan has joined our group as a postdoctoral researcher. 

  June 14, 2015 

小関が先端光科学若手研究会で発表しました。 

小関泰之「光パルスとラマン効果で生体を見る」先端光科学若手研究会、早稲田大学、2015年6月14日。 

June 11 and 12, 2015 

Ozeki group hosted PJ3/PJ4 meeting of ImPACT program. We shared exciting research progress and enjoyed fruitful discussions.

June 2, 2015

A new paper has been published.

Y. Ozeki and D. Tashiro, “Fast wavelength-tunable picosecond pulses from a passively mode-locked Er fiber laser using a galvanometer-driven intracavity filter,” Opt. Express, vol. 23, no. 12, pp. 15186-15194 (2015). 

May 14, 2015

Y. Ozeki gave a talk in CLEO2015.

Y. Ozeki and D. Tashiro, "Fast Wavelength-Tunable Picosecond Pulses from Mode-Locked Er Fiber Laser using an Intracavity Filter with Repetition Rate Compensator," CLEO:2015, STh1L.3, San Jose, May 14, 2015.

Apr. 24, 2015

Y. Ozeki gave an invited talk in ALPS2015.

Y. Ozeki, "Stimulated Raman scattering microscopy for label-free imaging and spectroscopy," The 4th Advanced Lasers and Photon Sources, ALPS11-1, Yokohama, Apr. 24, 2015.

Apr. 21, 2015

徳永君が国際光年記念シンポジウムでポスター発表を行いました。

徳永京也「誘導ラマン分光顕微鏡とそのパルス光源の研究」国際光年記念式典プレイベント、ポスター番号103、2015年4月21日。

Mar. 31, 2015

能勢 啓輔君が大阪大学の博士を取得しました。また、田代大悟君が学部を卒業しました。

Mar. 31, 2015

Our paper on SRS microscopy in collaboration with Canon has been published.

Y. Otsuka, K. Makara, S. Satoh, H. Hashimoto and Y. Ozeki, “On-line visualization of multicolor chemical images with stimulated Raman scattering spectral microscopy,” Analyst, Advance online.

Mar. 13-14, 2015

Ozeki lab hosted ImPACT Project 3 meeting held in Eng. 3 Bldg. We enjoyed fruitful discussions and new ideas toward the success of the project.

Mar. 12th, 2015

田代君、徳永君が応用物理学会で口頭発表を行いました。

田代 大悟、小関 泰之「共振器内フィルタを有する高速波長可変ピコ秒モード同期ファイバレーザ」第62回応用物理学会春季学術講演会、 12a-A15-9、東海大学、2015年3月12日。

徳永 京也、房 宜澂、草間 裕太、横山 弘之、小関 泰之「1.06-µm帯利得スイッチング駆動DFB-LD光パルスのジッタ低減の検討」第62回応用物理学会春季学術講演会、 12a-A15-10、東海大学、2015年3月12日。

Feb. 23rd, 2015

Dr. H. Niikura of Waseda University visited our lab, and gave us a seminar talk on attosecond science. All of us were really impressed by exciting achievements. 

Feb. 16th, 2015

田代大悟君が卒業論文発表を行いました。

Jan. 25th, 2015

新学術領域研究「柔らかな分子系」第8回ワークショップにおいて講演を行いました。

小関泰之「誘導ラマン散乱による振動分光イメージング」新学術領域研究「柔らかな分子系」第8回ワークショップ、OP-13、岡山いこいの村、2015年1月25日。

Jan. 23rd, 2015

日本光学会 冬季講習会において講演を行いました。

小関泰之「誘導ラマン顕微鏡による生体組織イメージング」日本光学会第41回冬季講習会-光による生体観察・計測-、東京大学、2015年1月23日。

Jan. 12, 2015

レーザー学会にてレーザー学会進歩賞の受賞講演を行いました。

小関泰之、岸達也、能勢啓輔、伊東一良「ファイバーレーザー光を用いたリアルタイム誘導ラマン散乱顕微鏡の開発」レーザー学会学術講演会第35回年次大会、12a-I-6、東海大学高輪キャンパス、2015年1月12日。

Dec. 2, 2014

Y. Ozeki gave an invited talk in the 2nd Asian Image Sensors and Imaging Systems Symposium.

Y. Ozeki, "Multi-color, stain-free medical imaging by stimulated Raman scattering microscopy," the 2nd Asian Image Sensors and Imaging Systems Symposium (AISISS2014), Tokyo, Dec. 2, 2014.

Nov. 28, 2014

ファイバーレーザー技術専門委員会・公開研究会で招待講演を行いました。

小関泰之「誘導ラマン顕微鏡におけるファイバーレーザーの活用」ファイバーレーザー技術専門委員会・公開研究会、名古屋大学、2014年11月28日。

Nov. 17, 2014

Website of ImPACT program is open.

Nov. 8, 2014

Y. Ozeki gave an invited talk in Biomedical Molecular Imaging Conference.

Y. Ozeki, "Recent advances on stimulated Raman scattering spectral microscopy," Biomedical Molecular Imaging (BMI2014), Taiwan, Nov. 8, 2014.

Nov. 4, 2014

Ozeki group is engaged in ImPACT program, Cabinet Office, Government of Japan,

under Program Manager Prof. Goda of Univ. of Tokyo.

Promotion movie (in Japanese) is here. Check it out!

Oct. 24, 2014

Dr. N. I. Smith of IFReC, Osaka University visited our lab, and gave us a seminar lecture entitled "Raman imaging for biological applications."

Oct. 23, 2014

Our paper on SRS microscopy in collaboration with Canon has been published.

S. Satoh, Y. Otsuka, Y. Ozeki, K. Itoh, A. Hashiguchi, K. Yamazaki, H. Hashimoto and M. Sakamoto, “Label-free visualization of acetaminophen-induced liver injury by high-speed stimulated Raman scattering spectral microscopy and multivariate image analysis,” Pathology Int. 64, 518-526 (2014).

Oct. 23, 2014

Y. Ozeki gave a talk in Photon Frontier Network Symposium.

Y. Ozeki, "Controlling laser pulses for stain-free biomedical microscopy," the 7th symposium of Photon Frontier Network, Tokyo, Oct. 23rd, 2014.

Oct. 11th, 2014

Y. Ozeki gave an invited talk at Photonics Asia.

Y. Ozeki, "Real-time multicolor stain-free imaging of tissue with stimulated Raman scattering microscopy," Photonics Asia, 9279-30, Beijing, Oct. 11th, 2014.

Sep. 27, 2014

Y. Ozeki gave an invited talk at the 52nd Annual Meeting of the Biophysical Society of Japan.

Y. Ozeki, "What could be visualized with stimulated Raman scattering?" the 52nd Ann. Meeting of the Biophys. Soc. Jpn., 3SDA-7, Sapporo, Sep. 27, 2014.

Sep. 26, 2014

創薬薬理フォーラムで小関が招待講演を行いました。

小関泰之「誘導ラマン顕微鏡による無染色生体イメージング」第22回創薬薬理フォーラムシンポジウム、特別講演<2>、長井記念ホール、2014年9月26日。

Sep. 10th, 2014

第２回バイオ関連化学シンポジウム若手フォーラム（岡山大学）で小関が招待講演を行いました。

小関泰之「誘導ラマン散乱顕微鏡による無標識生体イメージング」第2回バイオ関連化学進歩ジウム若手フォーラム、岡山大学、2014年9月10日。

Sep. 6th, 2014

Y. Ozeki gave an invited talk in the 23rd Annual Meeting of the Bioimaging Society.

小関泰之「細胞の細部構造をありのままに調べるラマン顕微鏡」、2014年バイオイメージング学会公開講座「融合研究が拓くバイオイメージング ～物理学・化学の生命科学研究への新展開～」、大阪大学、2014年9月6日。

Aug. 8th, 2014

徳永京也君が先端フォトニクスシンポジウムでポスター発表を行い、人気ポスター賞を受賞しました。

June 16th, 2014

T. Soejima (MIT) joined our lab as a summer intern.

June 12th, 2014

Y. Ozeki presented a poster at CLEO 2014.

Y. Ozeki, K. Tokunaga, and K. Nose, "Group delay compensation of spectrally-filtered picosecond pulses for stimulated Raman microscopy," CLEO2014, JTh2.30, San Jose, U.S.A. (2014).

June 9th, 2014

Y. Ozeki was introduced in a Featured Article on Nikkei Biotechnology & Business, 6-9, 2014.

May 30th, 2014

Y. Ozeki was awarded by the Laser Society of Japan.

小関准教授がレーザー学会奨励賞を受賞しました。

May 23rd, 2014

"Members" page has been updated.

May 2nd, 2014

Y. Ozeki visited Prof. Chi-Kuang Sun in National University of Taiwan, Taipei, and gave a seminar talk.

May 1st, 2014

Y. Ozeki visited Prof. Din-Pin Tsai in Academia Sinica, Taipei, and gave a seminar talk.

Apr. 23rd, 2014

Y. Ozeki gave an invited talk in BISC2014.

Y. Ozeki, "Multicolor, stain-free imaging of tissue with stimulated Raman scattering" Biomedical Imaging and Sensing Conference (BISC2014), BISC2-1, Yokohama, Japan, Apr. 23rd, 2014.

Jan. 20th, 2014

Y. Ozeki gave an invited talk entitled "誘導ラマン散乱による無染色生体組織のマルチカラーイメージング" in Annual Conference of The Laser Society of Japan, Kitakyushu, Japan (in Japanese.)

Dec. 21st, 2013

Y. Ozeki gave an invited talk entitled "Stain-free visualization of biological tissues by stimulated Raman scattering," in Quantum Electronics Workshop, Nagano, Japan.

Dec. 8th, 2013

Y. Ozeki gave an invited talk entitled "Stain-free, rapid observation of tissues by stimulated Raman scattering microscopy," in the 11th Annual Symposium of Medical Spectroscopy Association, paper 25, Fukui, Japan.

Dec. 5th, 2013

Y. Ozeki gave an invited talk entitled "Biomedical imaging of tissue with stimulated Raman scattering microscopy," in the 36th annual meeting of Molecular Biology Society of Japan, Kobe.

Nov. 22nd, 2013

K. Nose gave a talk entitled "Stimulated Raman spectral microscope with shot noise limited sensitivity using fiber laser sources," and K. Tokunaga presented a poster entitled "Stabilization of wavelength-tunable laser for stimulated Raman spectral microscopy," in the 2nd Workshop of Fiber Laser Technology, Nagoya University.

Nov. 14th, 2013

Kikuchi & Ozeki group has moved to Eng. 3rd Bldg in Hongo Campus.

Nov. 7th, 2013

Y. Ozeki gave a seminar talk in Dept. Pathology seminar in Keio University.

Sep. 17th, 2013

K. Tokunaga gave a talk entitled "Intensity stabilization of wavelength-tunable pulsed light source for stimulated Raman spectral microscopy," in 74th Autumn Meeting of Japanese Society of Applied Physics, Doshisha Univ.

Sep. 15th, 2013

Y. Ozeki gave an invited talk entitled "Rapid and stain-free bioimaging with stimulated Raman spectroscopy," The 22nd Annual Meeting of the Bioimaging Society, Tokyo, Japan.

Sep. 12th, 2013

Y. Ozeki gave an invited talk entitled "Label-free medical imaging with high-speed stimulated Raman spectral microscopy," IEEE Photon. Conf. (IPC2013), paper ThA2.1, Bellevue, U. S. A.

Sep. 9th, 2013

C. Noguchi joined Ozeki group as a secretary.

Aug. 28th, 2013

Y. Ozeki gave an invited talk entitled "Medical imaging of tissues by high-speed stimulated Raman spectral microscopy," ICAVS-7, paper B-038, Kobe, Japan.

Aug. 24th, 2013

Y. Ozeki gave an invited talk entitled "誘導ラマン散乱による高速無染色生体イメージング" in CREST Workshop "光が拓いた新しい細胞解析技術" (in Japanese).

Aug. 22nd, 2013

Our paper on real-time stimulated Raman scattering microscopy with fiber laser sources has been published in The Review of Laser Engineering. (in Japanese)

Aug. 9th, 2013

Y. Ozeki gave an invited talk entitled "コヒーレントラマンによる無染色生体イメージング(Stain-free biological imaging by coherent Raman spectroscopy)," in 第3回光科学異分野横断萌芽研究会(Phost/APSA workshop), Hakone, Kanagawa, Japan.

Aug. 7th, 2013

Y. Ozeki gave an invited talk entitled "誘導ラマン散乱顕微鏡による高速分光イメージング(High-speed spectral imaging by stimulated Raman scattering microscopy)," in バイオ・ラマン2017 (RIKEN Symposium Bio-Raman 2017), Matsuyama, Ehime, Japan.

July 10th, 2013

Ozeki Group welcomes the visit of Takuro Ideguchi and Simon Holzner from Max Planck Institute. T. Ideguchi gave us an exciting talk on frequency comb spectroscopy in Kikuchi & Ozeki lab seminar.

July 2nd, 2013

K. Nose gave a talk entitled "Fiber-laser-based stimulated Raman microspectroscopy with shot-noise limited sensitivity" in CLEO-PR2013, TuF4-2, Kyoto, Japan.

June 20th, 2013

Y. Ozeki gave an invited talk entitled "Imaging of biological tissues by high-speed stimulated Raman spectroscopy," in CREST-PRESTO Symposium, Ichijo-Kaikan, The University of Tokyo.

June 12th, 2013

K. Nose gave a talk entitled "Extended wavelength tunability of a picosecond pulse source by double-pass spectral filter. for fiber-laser-based stimulated Raman spectral microscopy" in CLEO2013, CTu2M.1, San Jose, U.S.A.

May 28th, 2013

Y. Ozeki gave a talk in Course Seminar of Department of Chemistry, The University of Tokyo.

Apr. 26th, 2013

Y. Ozeki attended the 3rd Advanced Photonics Symposium in Science Council of Japan to give an invited talk entitled "Stain-free biological microscope using stimulated Raman scattering （誘導ラマン散乱を用いた無染色生体顕微鏡）."

Apr. 22nd, 2013

Y. Ozeki attended ECONOS 2013 in the University of Exeter to give an invited talk entitled "High-speed spectral imaging by stimulated Raman scattering microscopy."

Apr. 1st, 2013

Y. Ozeki has been promoted to an Associate Professor of The University of Tokyo.