International

International conferences

2024 / 1件

• Christophe Pin, Hideki Fujiwara, Keiji Sasaki

• Fabrication of vanadium dioxide micro- and nanostructures by laser-induced hydrothermal synthesis

• The 14th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2024), Toyama International Conference Center, Japan (2024/7/17発表、2024/7/16-19)

2023 / 3件

• Quan Shi, Hideki Fujiwara, Shin Kajita, Ryo Yasuhara, Hirohiko Tanaka, Noriyasu Ohno, Hiyori Uehara

• A simple method for modifying the surface morphology of various semiconductors and its application in random lasing

• Global Plasma Forum in Aomori, Nebuta Museum WA RASSE, Aomori, Japan (2023/10/18発表（PSLO-I-10 ）、2023/10/15-18)

• Christophe Pin, Hideki Fujiwara, Keiji Sasaki

• Laser-induced hydrothermal synthesis of vanadium dioxide on gold thin films and nanostructures

• The 31st International Conference on Photochemistry, Sapporo Park Hotel, Sapporo, Japan (2023/7/24発表 (S3-17-CL)、2023/7/23-28)

• Hideki Fujiwara (Invited)

• Fabrication of low-threshold random lasers using laser processing and synthesizing techniques

• NYCU Spring Colloquium, Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan (2023/4/21)

2022 / 4件

• Yuji Sunaba, Hideki Fujiwara, Christophe Pin, Keiji Sasaki

• Optical rotation of a nanoparticle drive by optical torque of plasmonic nano-vortex field 

• SPIE Optics+Photonics, San Diego convention center, San Diego (2022/8/22発表（12198-27)、2022/8/22-25）

• Quan Shi, Hideki Fujiwara, Ryusei Osaka, Shin Kajita, Ryo Yasuhara, Noriyasu Ohno, Hiyori Uehara

• Plasma Induced Surface Nanostructure on Semiconductors for The Application of Random Laser

• The 15th Pacific Rim Conference on Lasers and Electro-Optics (CLEO-PR 2022), Sapporo Convention Center, Sapporo (2022/8/5発表 (CFP8J-02), 2022/7/31-8/5)

• Quan Shi, Hideki Fujiwara, Ryusei Osaka, Shin Kajita, Ryo Yasuhara, Noriyasu Ohno, Hiyori Uehara

• Plasma induced surface nanostructure on compound-semiconductors and its application of random laser

• The 13th Asia-Pacific Conference on Near-Field Optics (APNFO13), Hokkaido University (2022/7/30発表 (OL30-B7)、2022/7/29-31)

• Christophe Pin, Hideki Fujiwara, Kota Sudo, Ryo Kakuta, Yuji Sunaba, Shutaro Ishida, Keiji Sasaki

• Nanoparticle orbital rotation, from a nanoscale plasmonic hotspot to the periphery of a laser beam

• Optics & Photonics International Congress 2022, Optical Manipulation and Structured Materials Conference (OMC 2022), Pacifico Yokohama (2022/4/20発表, 2022/4/19-22)

2021 /  6件 

• Yuji Sunaba, Hideki Fujiwara, Kota Sudo, Christophe Pin, Syutaro Ishida, Keiji Sasaki（Poster, Online発表予定）

• Orbital rotation of a nanoparticle using plasmonic multimer structures

• Pacifichem 2021, Honolulu, Hawaii, USA (12/20発表、December 16 - 21, 2021).

• Christophe Pin, Hideki Fujiwara, Tatsuro Suzuki, Keiji Sasaki（Online発表予定）

• Photothermal energy conversion in plasmonic nanoantennas as a new path for the local growth of ZnO in nanophotonic devices

• Pacifichem 2021, Honolulu, Hawaii, USA (12/20発表、December 16 - 21, 2021).

• Hideki Fujiwara, Christophe Pin, Keiji Sasaki (Invited, Online)

• Selective ZnO growth in a plasmonic nanoantenna using a plasmon-assisted hydrothermal synthesis

• Optics & Photonics Japan 2021 Joint Symposia on Optics, 国立オリンピック記念青少年総合センター, ハイブリッド開催 (2021/10/27発表、2021/10/26-29).

• Christophe Pin, Hideki Fujiwara, Tatsuro Suzuki, Keiji Sasaki （口頭発表、Online）

• Nanoscale ZnO growth via localized photothermal energy conversion in plasmonic nanoantennas

• The 11th international conference on Metamaterials, photonic crystals and plasmonics (META 2021), University of Warsaw, Poland (July 22発表, July 20-23, 2021)

• Christophe Pin, Hideki Fujiwara, Tatsuro Suzuki, Keiji Sasaki（口頭発表）

• Photothermal energy conversion in plasmonic nanoantennas as a new path for the local growth of ZnO in nanophotonic devices 

• SPIE Photonics West, OPTO, San Francisco, California United States (March 6-11, 2021).

• Hideki Fujiwara（口頭発表）

• Fabrication of semiconductor random lasers using a laser-induced surface roughness

• The 8th Asian Conference on Crystal Growth and Crystal Technology (Online conference)(March 3発表, March 1-3, 2021).

2020 / 3件

• K. Sasaki, H. Fujiwara  et al.  （口頭発表予定→2021年に延期）

• Optical sorting of nanoparticles according to quantum mechanical properties

• Pacifichem 2020 Congress, Honolulu, Hawaii, USA (December 15 - 20, 2020).

• C. Pin, H. Fujiwara, T. Suzuki, K. Sasaki （口頭発表予定→2021年に延期）

• Photothermal energy conversion in plasmonic nanoantennas as a new path for the local growth of ZnO in nanophotonic devices

• Pacifichem 2020 Congress, Honolulu, Hawaii, USA (December 15 - 20, 2020).

• Christophe Pin, Hideki Fujiwara, Tatsuro Suzuki, and Keiji Sasaki（2021年に延期）

• Photothermal energy conversion in plasmonic nanogap antennas: Application to localized ZnO growth for nanophotonics

• The 7th Optical Manipulation Conference (OMC2020), Pacifico-Yokohama, Yokohama, Japan (2020/4/20-24).

2019 /  4件

• Kenji Setoura, Hiroki Aikawa, Hideki Fujiwara, and Keiji Sasaki (Poster)

• Shaping Poynting vectors for optical manipulation of nanoparticles

• The International Symposium on Plasmonics and Nano-photonics (iSPN2019), Ikuta Shrine Hall, Kobe, Japan (2019/11/13, November 11-14, 2019).

• Christophe Pin, Hideki Fujiwara, Tatsuro Suzuki, and Keiji Sasaki (Poster)

• Localized growth of ZnO on gold nano-antennas for nanophotonic applications

• The 4th A3 Metamaterials Forum 2019, Hokkaido University, Sapporo, Japan (August 23, August 21-24, 2019).

• Christophe Pin, Ryohei Otsuka, Hideki Fujiwara, and Keiji Sasaki (Poster)

• Optical Transport of Fluorescent Diamond Particles inside a Tapered Capillary

• EOS Optical Technologies: Optofluidics and Manufacturing, Tolerancing, and Testing of Optical Systems, Munich, Germany (2019/6/25, 24 - 27 June 2019).

• Christophe Pin, Ryohei Otsuka, Hideki Fujiwara, and Keiji Sasaki

• Optical propulsion of fluorescent diamonds inside a tapered capillary

• The 6th Optical Manipulation Conference (OMC2019),Pacifico-Yokohama, Yokohama, Japan (2019/4/25, 2019/4/22-26).

2018 / 5件

• Hideki Fujiwara, Kyosuke Yamauchi, and Keiji Sasaki

• Selective manipulation of nano-diamonds using an optical tapered fiber

• The 12th International Conference on Excitonic and Photonic Processes in Condensed Matter and Nano Materials (EXCON 2018), Nara Kasugano International Forum, Nara, Japan (2018/7/13, 2018/7/8-13).

• Hideki Fujiwara, and Keiji Sasaki (Invited)

• Localized field control by plasmonic mode interference 

• META 2018 CONFERENCE (The 9th International Conference on Metamaterials, Photonic Crystals and Plasmonics), ROUND-TRIP MARSEILLE CRUISE (2018/6/28, 2018/6/24-7/1).

• Hiroki AIKAWA, Hideki Fujiwara and Keiji Sasaki (Poster)

• Optical manipulation of nanoparticles using poynting vector control

• 台湾サマーコース, Taiwan (2018/7/XX, 2017/11/6-10).

• Shinsuke KITA, Shutaro ISHIDA, Hideki Fujiwara, An-Chieh CHENG, Teruki SUGIYAMA, and Keiji Sasaki (Poster)

• Enantiocontrol of chiral crystallization using circularly-polarized localized-plasmonic fields

• 台湾サマーコース, Taiwan (2018/7/XX, 2017/11/6-10).

• Hideki Fujiwara, Kyosuke Yamauchi, and Keiji Sasaki

• Nanoparticle manipulation using a tapered fiber 

• The 5th Optical Manipulation Conference 2018,Pacifico-Yokohama, Yokohama (2018/4/26, 2018/4/25-27).

2017 / 6件

• Hideki Fujiwara and Keiji Sasaki (Poster)

• Lasing from a GaN substrate by intense pulsed laser irradiation

• 653. WE-Heraeus-Seminar: Optical Microcavities and Their Applications (WOMA2017), Physikzentrum, Bad Honnef, Germany (2017/11/6, 2017/11/6-10).

• Hideki Fujiwara, Ryo Niyuki, and Keiji Sasaki

• Fabrication of low-threshold ZnO nanorod array random lasers

• SPIE Optics & Photonics, San Diego Convention Center, San Diego, USA (2017/8/6, 2017/8/6-10).

• Hideki Fujiwara and Keiji Sasaki (Invited)

• Fabrication of low-threshold ZnO nanorod array random laser using a laser-induced hydrothermal synthesis

• The 7th International Multidiscipline Conference on Optofluidics 2017, Grand Copthorne Waterfront Hotel, Singapore (2017/7/27, 2017/7/25-28).

• Kyosuke Yamauchi, Hideki Fujiwara, Keiji Sasaki (Poster)

• Study on light and matter control using a tapered fiber

• The 6th Hsinchu Summer Course and Workshop on June-July 2017, NCTU, Hsinchu, Taiwan (2017/7/4, 2017/7/4-5).

• Hideki Fujiwara, Yuki Yasuda, Hiroaki Orita, Shutaro Ishida, and Keiji Sasaki

• Localized field control at the nano-scale 

• The 4th Optical Manipulation Conference 2017,Pacifico-Yokohama, Yokohama (2017/4/21, 2017/4/19-21).

• Hideki Fujiwara

• Control of light using random structures

• International Workshop on Quantum and Nanoscale Photonics, Hokkaido Unicersity, Sapporo (2017/3/30, 2016/3/30).

2016 / 3件

• Hideki Fujiwara, Takemasa Suzuki, Ryo Niyuki, Keiji Sasaki (Poster)

• Realization of Low Threshold ZnO Nanorod Array Random Lasers Using a Laser-Induced Hydrothermal Synthesis

• Photonics and Fiber Technology Congress (Nonlinear Photonics), SMC Conference & Function Centre, Sydney, Australia (2016/9/6, 2016/9/5-8).

• Ryo Niyuki, Hideki Fujiwara, Keiji Sasaki (Poster)

• White Light Induced Mode Switching in a Graphene Flake Mixed ZnO Random Laser

• Photonics and Fiber Technology Congress (Nonlinear Photonics), SMC Conference & Function Centre, Sydney, Australia (2016/9/6, 2016/9/5-8).

• Hideki Fujiwara, Keiji Sasaki (Invited)

• Resonance-controlled Random Lasers and Their Possible Applications

• The 6th International Multidiscipline Conference on Optofluidics, Beijing, P. R. China (2016/7/26, 2016/7/24-27).

2015 / 9件

• Ryo Niyuki, Hideki Fujiwara, Toshihiro Nakamura, Takeshi Tsuji, and Keiji Sasaki (Poster)

• The origins of resonance-controlled ZnO random laser

• Asia core stsudent meeting 2015, Photonics Center, Osaka University, Osaka (2015/12/8, 2015/12/8-9).

• Takemasa Suzuki, Ryo Niyuki, Hideki Fujiwara, Keiji Sasaki (Poster)

• Random lasing within a two-dimensional ZnO nanorod array fabricated by a laser-induced hydrothermal synthesis

• The 4th International Workshop on Microcavities and Their Applications (WOMA2015), Hokkaido Univ., Sapporo (2015/12/2, 2015/12/1-4).

• Ryo Niyuki, Hideki Fujiwara, Toshihiro Nakamura, Takeshi Tsuji, and Keiji Sasaki (Poster)

• Characteristic analysis of resonance-controlled ZnO random laser

• The 4th International Workshop on Microcavities and Their Applications (WOMA2015), Hokkaido Univ., Sapporo (2015/12/2, 2015/12/1-4).

• Shumpei Onodera, Fang Ren, Hideaki Takashima, Hideki Fujiwara, and Keiji Sasaki (Poster)

• Two-photon excited fluorescence by an efficient localized plasmon excitation via a fiber-coupled microspherical cavity

• The 4th International Workshop on Microcavities and Their Applications (WOMA2015), Hokkaido Univ., Sapporo (2015/12/2, 2015/12/1-4).

• Hideki Fujiwara, Ryo Niyuki, and Keiji Sasaki (Poster)

• Study on origins of resonance-controlled random lasers

• The 15th RIES-Hokudai International Symposium "術 [Jutsu]", Chateraise Gateaux Kingdom Sapporo, (11/10発表、2015/11/10-11/11).

• Takemasa Suzuki, Ryo Niyuki, Hideki Fujiwara, Keiji Sasaki (Poster)

• ZnO nanorod array random laser fabricated by a laser-induced hydrothermal synthesis

• The 15th RIES-Hokudai International Symposium "術 [Jutsu]", Chateraise Gateaux Kingdom Sapporo, (11/10発表、2015/11/10-11/11).

• Ryo Niyuki, Hideki Fujiwara, Toshihiro Nakamura, Yoshie Ishikawa, Naoto Koshizaki, Takeshi Tsuji, and Keiji Sasaki

• Double threshold behavior in a resonance-controlled ZnO random laser

• Frontiers in Optics, The Fairmont San Jose, San Jose (2015/10/22, 2015/10/18-22)

• Hideki Fujiwara, Ryo Niyuki, Yoshie Ishikawa, Naoto Koshizaki, Takeshi Tsuji, and Keiji Sasaki

• Control of random lasing properties within a submicrometer-sized ZnO spherical particle film

• SPIE Photonics West, Moscorne Center, San Francisco (2015/2/9, 2015/2/7-2/12).

• Ryo Niyuki, Hideaki Takashima, Hideki Fujiwara, and Keiji Sasaki

• Annealing temperature dependence of random lasing properties in a diamond nanoparticle film

• SPIE Photonics West, Moscorne Center, San Francisco (2015/2/9, 2015/2/7-2/12).

2014 / 4件

• Ryo Niyuki, Hideki Fujiwara, and Keiji Sasaki (poster)

• Development of Ultraviolet Diamond Random Laser

• The 15th RIES-Hokudai International Symposium “響 [hibiki]”, Chateraise Gateaux Kingdom Sapporo, (12/16発表、2014/12/16-12/17).

• Hideki Fujiwara

• Approach to control of the light emitting devices based on nanoparticles

• Belgium and Japan Joint Symposium on Nanoplasmonics and Nanoimaging Chemistry, Hokkaido University, (10/10発表、2014/10/10).

• Niyuki Ryo, Hideki Fujiwara, and Keiji Sasaki (Poster)

• Developement of unique random lasers

• Belgium and Japan Joint Symposium on Nanoplasmonics and Nanoimaging Chemistry, Hokkaido University, (10/10発表、2014/10/10).

• Hideki Fujiwara

• Mode-Controlled Ultraviolet Random Lasers

• HOKUDAI-NCTU Joint Symposium (Extension from RIES-CIS Symposium) on Nano, Photo and Bio Sciences , Hokkaido University, (9/10発表、2014/9/10-9/11).

2013 / 10件

• Fang Ren, Hideaki Takashima, Hideki Fujiwara, and Keiji Sasaki (poster)

• Two-photon excited fluorescence from a PIC-attached Au-coated tip via a thin tapered fiber under a weak CW excitation

• The 14th RIES-Hokudai International Symposium “網 [mou]”, Chateraise Gateaux Kingdom Sapporo, (12/11発表、2013/12/11-12/12).

• Hideki Fujiwara (invited)

• Manipulation of photon localized fields within a random medium: realization of low-threshold and quasi-single-mode random laser 

• The 14th RIES-Hokudai International Symposium “網 [mou]”, Chateraise Gateaux Kingdom Sapporo, (12/11発表、2013/12/11-12/12).

• Fang Ren, Hideaki Takashima, Yoshito Tanaka, Hideki Fujiwara, and Keiji Sasaki

• Nonlinear phenomena from a PIC attached gold tip using a plasmonic-whispering gallery mode hybrid system 

• SPIE Optics & Photonics, San Diego (2013/8/29, 2013/8/25-8/29).

• Takeshi Tsuji, Yuuma Higashi, Masaharu Tsuji, H. Fujiwara, Yoshie Ishikawa, and Naoto Koshizaki,

• Fabrication of Spherical-Shaped Submicron Particles of ZnO Using Laser-induced Melting of Submicron-sized Source Materials

• The 6th International Congress on Laser Advanced Materials Processing (LAMP2013), TOKI MESSE Niigata Convention Center, Niigata, Japan (2013/7/25, 2013/7/23-7/26).

• Yuuma Higashi, Takeshi Tsuji, Masaharu Tsuji, H. Fujiwara, Yoshie Ishikawa, and Naoto Koshizaki (Poster)

• Fabrication of Spherical-Shaped Submicron Particles of ZnO Using Laser-induced Melting of Submicron-sized Source Materials

• The 10th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), Kyoto International Conference Center, Kyoto (2013/7/3, 2013/6/30-7/4).

• Ryo Niyuki, Yoshie Ishikawa, Naoto Koshizaki, Takeshi Tsuji, H. Fujiwara, and Keiji Sasaki (Poster)

• Realization of Single-Mode Random Lasing Within a Zinc Oxide Nanoparticle Film

• The 10th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), Kyoto International Conference Center, Kyoto (2013/7/3, 2013/6/30-7/4).

• H. Fujiwara, Yoshito Tanaka, and Keiji Sasaki

• Direct imaging of localized fields in a gold nanostructure using a scattering-type near-field microscope

• The 10th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), Kyoto International Conference Center, Kyoto (2013/7/4, 2013/6/30-7/4).

• H. Fujiwara, Ryo Niyuki, Takeshi Tsuji, Yoshie Ishikawa, Naoto Koshizaki, and Keiji Sasaki (Invited)

• Quasi-single mode random laser

• Collaborative Conference on Materials Research (CCMR2013), Ramada Plaza Jeju Hotel, South Korea (2013/6/24-6/28).

• Hideki Fujiwara, Ryo Niyuki, Takeshi Tsuji and Keiji Sasaki (Poster)

• Random Lasing at a Defect Particle Intentionally Embedded in a ZnO Nanoparticle Film

• 3rd International Workshop on Microcavities and Their Applications (WOMA 2013), Peking University, Beijing, China (2013/5/29, 2013/5/27-5/31).

• H. Fujiwara, Ryo Niyuki, Yoshie Ishikawa, Naoto Koshizaki, Takeshi Tsuji, and Keiji Sasaki

• Quasi-single-mode random lasing within a ZnO nanoparticle film

• SPIE Photonics West, Moscorne Center, San Francisco (2013/2/4, 2013/2/2-2/7).

2012 / 5件

• Fang Ren, Hideaki Takashima, H. Fujiwara, and Keiji Sasaki (poster)

• Second harmonic generation by an efficient localized plasmon excitation via a tapered fiber-coupled microresonator

• The 13th RIES-Hokudai International Symposium "律"[ritsu], Chateraise Gateaux Kingdom Sapporo, (2012/12/13-12/14).

• Fang Ren, Hideaki Takashima, Kazutaka Kitajima, H. Fujiwara, and Keiji Sasaki

• Second harmonic generation from the top of an Au-coated tip via a tapered fiber coupled microsphere resonator

• SPIE Optics+Photonics, San Diego (2012/8/12-8/16).

• H. Fujiwara, Y. Nagao, J. Qi, H. Thta, T. Chiba and Keiji Sasaki (Poster)

• Trap state lifetime analysis of single CdSe/ZnS quantum dots on conductive thin films

• International Conference on the Nanostructure-Enhanced Photo-Enerfy Conversion - Yamada Conference LXVI-, National Museum of Emerging Science and Innovation (Miraikan), Tokyo (2012/6/4, 2012/6/3-6/6).

• H. Fujiwara, Kun Sei, Hiroki Ohta, Takashi Chiba, and Keiji Sasaki

• Trap state lifetime analysis of single CdSe/ZnS quantum dots on a thin conductive film

• SPIE Photonics West, San Francisco (1/21-1/26, 2012).

• Keiji Sasaki, Hideaki Takashima, Yoshito Tanaka, and H. Fujiwara

• Highly efficient photon coupling into a plasmonic nanostructure using a fiber-coupled microspherical cavity

• SPIE Photonics West, San Francisco (1/21-1/26, 2012).

2011 / 3件

• K. Kitajima, H. Takashima, H. Fujiwara, J. Nishii, and K. Sasaki (Poster)

• Efficient excitation of localized plasmons via a tapered fiber coupled microresonator

• RIES International Symposium, Hokkaido University (11/21, 2011).

• Y. Tanaka, H. Ishiguro, H. Fujiwara, Y. Yokota, K. Ueno, H. Misawa, and K. Sasaki

• Direct Observation of Nanogap-Mode Plasmon-Resonant Fields

• Nanoplasmonic sensors and spectroscopy 2011, Chalmers, Gothenburg, Sweden (2011).

• H. Fujiwara, T. Ikeda, and K. Sasaki

• Experimental demonstration of light transmission property through a tapered fiber embedded in scattering nanoparticles

• SPIE Photonics West, San Francisco (1/22-1/27, 2011).

2010 / 11件

• H. Fujiwara, T. Ikeda, and K. Sasaki (poster)

• Light transmission characteristics of a waveguide surrounded by scattering nanoparticles

• Pacifichem 2010, Hawaii (12/15-12/20, 2010).

• K. Sasaki, Y. Tanaka, H. Takashima, and H. Fujiwara

• Photon localization within plasmonic microcavity structures

• Pacifichem 2010, Hawaii (12/15-12/20, 2010).

• Y. Tanaka, H. Ishiguro, H. Fujiwara, Y. Yokota, K. Ueno, H. Misawa, and K. Sasaki (poster)

• Direct observation of localized fields in nanogap of gold dimer structure using a scattering-type near-field microscope

• Pacifichem 2010, Hawaii (12/15-12/20, 2010).

• Hideki Fujiwara, Takumi Ikeda, and Keiji Sasaki (poster)

• Photon manipulation using randomly distributed metal scatterers

• The 16th Microoptics Conference (MOC), The Ambassador Hotel, Taiwan (10/31-11/3, 2010).

• Hideki Fujiwara, Takumi Ikeda, and Keiji Sasaki (poster)

• Control of Resonant Modes Using a Defect Region in a Random Structure

• 7th International Conference on Optics-photonics Design & Fabrication (ODF10), Pacifico Yokohama (Conference center), Yokohama (4/19-21, 2010).

• Yoshito Tanaka, Hideki Fujiwara, Hideaki Takashima, and Keiji Sasaki (Poster)

• Observation of localized fields in metal nanostructures using a scattering-type near field microscope

• International Symposium of Joint Research Network on Advanced Materials and Devices, Hotel Nidom, Hokkaido (3/25-26, 2010).

• Hideaki Takashima, Yoshito Tanaka, Hideki Fujiwara, and Keiji Sasaki (Poster)

• Coupling between fiber-coupled microspheres and metal coated optical fiber tips

• International Symposium of Joint Research Network on Advanced Materials and Devices, Hotel Nidom, Hokkaido (3/25-26, 2010).

• Hideki Fujiwara, Yoshito Tanaka, Hideaki Takashima, and Keiji Sasaki (invited)

• Analysis of photon-localization within integrated functional structures using narrow-band laser microimaging spectroscopy

• The 3rd Taiwan-Japan Symposium on Organized Nanomaterials and Nanostructures Related to Photoscience, Silks Place Taroko Hotel, Hualien, Taiwan (3/22-24, 2010).

• Shahrul Kadri, Hideki Fujiwara, and Keiji Sasaki (Poster)

• Analysis of photothermally induced vibration in metal coated AFM cantilever

• Southeast Asian International Advanced in Micro / Nano-technology Advances (SAIAM 2010), Montien Hoteal, Bangkok, Thailand (3/8-11, 2010).

• Hideki Fujiwara and Keiji Sasaki (Poster)

• Numerical analysis of random lasing properties in a waveguide structure surrounded by a random medium

• SPIE Photonics West, LASE 2010 (lasers and applications in science and engineering), San Francisco, USA (1/23-28, 2010).

• Hideaki Takashima, Kiyota Toubaru, Masazumi Fujiwara, Hideki Fujiwara, Keiji Sasaki, and Shigeki Takeuchi (Poster)

• Tapered fiber coupling to microspheres at cryogenic temperature

• SPIE Photonics West, LASE 2010 (lasers and applications in science and engineering), San Francisco, USA (1/23-28, 2010).

2009 / 9件

• Yoshito Tanaka, Hiroyasu Ishiguro, Hideki Fujiwara, and Keiji Sasaki

• Direct observation of localized fields in nanogaps between gold nanoparticles using a scattering-type near-field microscope

• The 7th Asia-Pasific Conference on Near-Field Optics (APNFO), Jeju Island, Korea (Nov. 25-27, 2009).

• Shahrul Kadri, Hideki Fujiwara, and Keiji Sasaki (Poster)

• Photo-induced forces on AFM cantilever by externally modulated laser

• International Conference on Optical Instrument and Technology (OIT'09), Shanghai Everbright Convention and Exhibition Center, Shanghai, CHina (Oct. 19-21, 2009).

• Hideki Fujiwara and Keiji Sasaki (Poster)

• Resonant and lasing properties at a defect region within a random structure

• International Workshop on Microcavities and Their Applications (WOMA2009), Seoul National University, Korea (8/25発表、2009/8/25-28).

• Hideki Fujiwara and Keiji Sasaki (Invited)

• Manipulation of modal properties in random structures

• International Workshop on Photons and Spins in Nanostructures, RIES, Hokkaido Univ., Japan (2009/7/27-28).

• Hideaki Takashima, Msahide Takahashi, Hideki Fujiwara, Keiji Sasaki, and Shigeki Takeuchi (Poster) 

• Analysis of input-output characteristic of fiber-coupled microsphere laser using rate equation models

• International Workshop on Photons and Spins in Nanostructures, RIES, Hokkaido Univ., Japan (2009/7/27-28).

• Hideki Fujiwara and Keiji Sasaki (Poster)

• Photon manipulation in random structures

• International Symposium on Advances in Nanostructure-Enhanced Photochemical reactions and Photonergy conversion, Faculty Club, Leuven, Belgium (7/16発表、2009/7/16-17).

• Keiji Sasaki, Yoshito Tanaka, and Hideki Fujiwara

• Analysis of photon-localization within integrated functional structures

• International Symposium on Advances in Nanostructure-Enhanced Photochemical reactions and Photonergy conversion, Faculty Club, Leuven, Belgium (7/16発表、2009/7/16-17).

• Yoshito Tanaka, Hideki Fujiwara, and Keiji Sasaki (Poster)

• Spatially mapping of localized field enhancements in the metal nanostructures

• International Symposium on Advances in Nanostructure-Enhanced Photochemical reactions and Photonergy conversion, Faculty Club, Leuven, Belgium (7/16発表、2009/7/16-17).

• Hideki Fujiwara and Keiji Sasaki

• Structural parameter dependence of localized modes induced in a waveguide structure surrounded by a random medium

• SPIE Photonics West, LASE 2009 (lasers and applications in science and engineering), San Jose, California, USA (Jan. 2009).

2008 / 9件

• Hideaki Takashima, Hideki Fujiwara, Shigeki Takeuchi, Keiji Sasaki, and Masahide Takahashi (Poster)

• Analysis of input-output characteristic of fiber-coupled microsphere laser using rate equations

• EOS Annual Meeting 2008, Paris-Nord Villepinte, Parc d'expositions et Centre de Conventions, Paris, France (2008). 

• Hideki Fujiwara (Poster)

• Localized mode control using a defect region in a random structure

• The 10th RIES-HOKUDAI International Symposium, Hokkaido Univ. (Dec., 2008)

• Hideki Fujiwara and Keiji Sasaki (Poster)

• Numerical analysis of localized modes within a waveguide structure surrounded by a random structure

• 6th International Conference on Photo-Excited Processes and Applications (ICPEPA 2008), Hotel Royton Sapporo, Japan (Sep., 2008).

• Keiji Sasak, Yoshio Kawabe, Hideki Fujiwara, Ryo Okamoto, and Shigeki Takeuchi

• Spatial interference fringe on entangled two-photon process beating the diffraction limit

• XXIInd IUPAC symposium on photochemistry, Gothenburg Convention Centre, Gothenburg, Sweden (2008).

• Hideki Fujiwara, Takashi Chiba, Jun-ichi Hotta, Shigeki Takeuchi, and Keiji Sasaki (Poster)

• Dynamical analysis of triplet lifetime of single molecules using photon inter-detection time  recording

• XXIInd IUPAC symposium on photochemistry, Gothenburg Convention Centre, Gothenburg, Sweden (2008).

• T. Asai, H. Takashima, H. Fujiwara, K. Sasaki, and S. Takeuchi (Poster) 

• Optical Phase Shift Observed in a Resonance Mode of a Tapered-Fiber Coupled with a Microsphere Resonator

• 4th Handai Nanoscience and Nanotechnology International Symposium, Osaka University (2008).

• T. Asai, H. Takashima, H. Fujiwara, K. Sasaki, and S. Takeuchi (Poster)

• Micro-sphere resonator coupled with a tapered fiber for quantum information processing 

• Proceeding of 2008 International Symposium on Physics of quantum technology, 奈良県新公会堂 (Nov. 2008).

• Hideaki Takashima, Hideki Fujiwara, Shigeki Takeuchi, Keiji Sasaki, and Masahide Takahashi (Poster)

• Control of spontaneous emission coupling factor in fiber-coupled microsphere resonators

• SPIE Photonics West, LASE 2008 (lasers and applications in science and engineering), abstract 85, San Jose, California, USA (2008).

• Hideaki Takashima, Hideki Fujiwara, Shigeki Takeuchi, Keiji Sasaki, and Msahide Takahashi (Poster)

• Control of spontaneous emission coupling factor in tapered-fiber-coupled microspheres

• The 9th RIES-Hokudai International Symposium "創" (電子研国際シンポジウム), abstract xx, Hokkaido University (2008).

2007 / 4件

• Hideki Fujiwara, Takashi Chiba, Sho Tamura, Shigeki Takeuchi, and Keiji Sasaki (Invited)

• Analysis of single-molecule emission dynamics using photon interarrival time recording

• SPIE Optics & Photonics, abstract XX, San Diego convention center, San Diego, USA (2007).

• Takashi Chiba, Hideki Fujiwara, Jun-ichi Hotta, Shigeki Takeuchi, and Keiji Sasaki (Poster)

• Triplet lifetime analysis of single molecules for sensing local oxygen concentration

• The 1st European Topical Meeting on Nanophotonics and Metamaterials (NanoMeta 2007), abstract XX, Seefeld ski resort, Tirol, Austria (2007).

• Hideki Fujiwara and Keiji Sasaki (Poster)

• Analysis of enhanced local fields within a defect region of a random medium

• SPIE Photonics West, LASE 2007 (lasers and applications in science and engineering), abstract XX, San Jose, California, USA (2007).

• Shigeki Takeuchi, Hidenori Konishi, Hideaki Takashima, Hideki Fujiwara, and Keiji Sasaki

• Polarization-discriminating spectra of a fiber-microsphere system

• SPIE Photonics West, LASE 2007 (lasers and applications in science and engineering), abstract XX, San Jose, California USA (2007).

2006 / 3件

• Hideki Fujiwara, Akito Chiba, Jun-ichi Hotta, Shigeki Takeuchi and Keiji Sasaki (Poster)

• Fano resonance in transmission spectra of a tapered optical fiber coupled with a microsphere

• SPIE Photonics West, LASE 2006 (lasers and applications in science and engineering), abstract XX, San Jose, California USA (2006).

• Keiji Sasaki, Hideki Fujiwara, and Shigeki Takeuchi

• Photon manipulation with micro- and nano-structures

• Newcastle-Hokkaido symposium, Newcastle University, UK (2006).

• Hideki Fujiwara (Invited)

• Nonlinear phenomena induced in a random structure

• The 8th RIES-HOKUDAI International Symposium "微" (電子研国際シンポジウム), abstract P.4-6, Hokkaido University (2006).

2005 / 10件

• Hideki Fujiwara, Akito Masuhara, Hitoshi Kasai, Hachiro Nakanishi, and Keiji Sasaki (poster)

• Control of localized modes in random media with nonlinear nanoparticles

• Third International Conference on Molecular Electronics and Bioelectronics (M&BE3), abstract 55, Tokyo (2005).

• Hideki Fujiwara, Yoshio Kawabe, Shigeki Takeuchi, Keiji Sasaki (poster)

• Numerical analysis of propagation properties of parametric fluorescence photon-pairs by use of a tuning curve filtering method

• IQEC/CLEO-PR 2005, abstract XX, Tokyo (2005).

• Yoshio Kawabe,  Hideki Fujiwara,  Shigeki Takeuchi,  Keiji Sasaki (poster)

• Experimental analysis of spatial propagation properties of beam-like pa-rametric fluorescence by use of a tuning curve filtering method

• IQEC/CLEO-PR 2005, abstract XX, Tokyo (2005).

• Hideaki Takashima, Akito Chiba, Hideki Fujiwara, Jun-ichi Hotta, Shigeki Takeuchi, and Keiji Sasaki (poster)

• Analysis of whispering-gallery modes of CdSe/ZnS quantum dots-bound microspheres with a stem

• IQEC/CLEO-PR 2005, abstract XX, Tokyo (2005).

• Akito Chiba, Hideki Fujiwara, Jun-ichi Hotta, Shigeki Takeuchi, and Keiji Sasaki (poster)

• Change of asymmetric lineshape in transmission spectra of a tapered fiber coupled with a microspherical cavity

• IQEC/CLEO-PR 2005, abstract XX, Tokyo (2005).

• Hideki Fujiwara, Ryoichi Takahashi, and Keiji Sasaki

• Analysis of enhanced local fields within a defect of a random medium

• XXII International Conference on Photochemistry (ICP), abstract XX, Cairns Convention Center, Qeensland, Australia (2005).

• Keiji Sasaki, Hideki Fujiwara, Hidehisa Takasaki, and Jun-ichi Hotta

• Discrete transition in trapped particle position by interference effects

• Optics & Photonics (SPIE annual meeting), abstract XX, San Diego Convention Center, San Diego, California USA (2005).

• Hideki Fujiwara, Yoshimasa Momose, Ryoichi Takahashi, and Keiji Sasaki (Invited)

• Photon localized modes within a defect region of a random medium

• The Sixth Japan-Finland Joint Symposium on Optics in Engineering (OIE05), abstract XXX, Hokkai-Gakuen University, Sapporo, Hokkaido, Japan (2005).

• Hideki Fujiwara and Keiji Sasaki (Poster)

• Nonlinear optical input-output characteristics of blue emission intensity of a ZnO powder random medium

• The 12th International Conference on Unconventional Photoactive Systems (UPS12), abstract XX, Sendai, Japan (2005).

• Keiji Sasaki, Hideki Fujiwara, and Hiroshi Masuhara (Poster)

• Enhancement of Förster Energy Transfer in a Microspherical Cavity

• The 12th International Conference on Unconventional Photoactive Systems (UPS12), abstract XX, Sendai, Japan (2005).

2004 / 8件

• Akito Chiba, Hideaki Takashima, Hideki Fujiwara, Jun-ichi Hotta, Shigeki Takeuchi, and Keiji Sasaki  (poster)

• A microspherical cavity coupled with a tapered fiber  - Nano optical device for quantum phase gate -

• The International Symposium on Quantum Info-Communications and Related Quantum Nanodevices (量子情報通信と量子ナノデバイスに関する国際シンポジウム), abstract XXX, Tokyo (2004).

• Hideki Fujiwara, Yoshimasa Momose, and Keiji Sasaki (poster)

• Numerical analysis of resonant modes within a two-dimensional random medium

• 2004 International Conference Optics & Photonics in Technology Frontier (ICO '04), abstract 505-506, Makuhari Messe, Chiba (2004).

• Hideaki Takashima, Akito Chiba, Hideki Fujiwara, Jun-ichi Hotta, Shigeki Takeuchi, and Keiji Sasaki (poster)

• Characterization of a microspherical cavity with a stem by observing resonantly scattered far-field incident light

• Nonlinear Optics 2004 (NLO2004), abstract XXX, Waikoloa, Hawaii (2004).

• Yoshio Kawabe, Hideki Fujiwara, Shigeki Takeuchi,and Keiji Sasaki (poster)

• Evaluation of the coupling efficiencies of parametric fluorescence for quantum lithography

• Imaging at the limit (EPS-QEOD European Conference), abstract XXX, Corsica, France (2004).

• Hideki Fujiwara and Keiji Sasaki

• Observation of optical bistability in a ZnO powder random medium

• VIII International Conference on Optics within Life Science (OWLS8), abstract XXX, Melbourne, Australia (2004).

• Jun-ichi Hotta, Akito Chiba, Hideaki Takashima, Hideki Fujiwara, Shigeki Takeuchi, and Keiji Sasaki

• MANIPULATION OF OPTICAL COUPLING TO WHISPERING-GALLERY MODES OF MICROSPHERICAL CAVITY

• VIII International Conference on Optics within Life Science (OWLS8), abstract XXX, Melbourne, Australia (2004).

• Hideki Fujiwara and Keiji Sasaki (poster)

• Optical bistability of blue emission in a ZnO powder random medium

• The 6th RIES-Hokudai Symposium "超(chou)", abstract XXX, Sappro (2004).

• J. Hotta, A. Chiba, H. Takashima, H. Fujiwara, S. Takeuchi and K. Sasaki (poster)

• Control of optical coupling to microspherical cavity

• The 6th RIES-Hokudai Symposium "超(chou)", abstract XXX, Sappro (2004).

2003 / 6件

• Jun-ichi Hotta, Hideaki Takashima, Akito Chiba, Hideki Fujiwara, Shigeki Takeuchi, and Keiji Sasaki (poster)

• Scattering analysis of a microhere at the tip of an optical fiber

• XXIst International conference on photochemistry (ICP03), abst. 226, Nara (2003).

• Akito Chiba, Hideki Fujiwara, Jun-ichi Hotta, Shigeki Takeuchi, and Keiji Sasaki (poster)

• Fine frequency tuning of a microspherical cavity by temperature control

• CLEO Europe 2003, XXXXX, Munich, Germany (2003).

• Hideki Fujiwara, Yoshio Kawabe, Shigeki Takeuchi, and Keiji Sasaki (poster)

• Spatial propagation properties of beam-like type-II parametric fluorescence photon pairs

• 16th International Conference on Laser Spectroscopy (ICOLS03), abstract 185, Palm Cove, Australia (2003).

• Hideki Fujiwara, Masahiro Sarashina, Yoshimasa Momose, and Keiji Sasaki (poster)

• Approach to Control of Localized Modes in Random Media

• 16th International Conference on Laser Spectroscopy (ICOLS03), abstract 152, Palm Cove, Australia (2003).

• Hideki Fujiwara, Yoshimasa Momose, and Keiji Sasaki (poster)

• Spectral change of amplified spontaneous emission induced by an optical Kerr effect in a random medium

• CREST&QNN'03 Joint International Workshop, abstract 131, Awaji Yumebutai International Conference Center (2003).

• Yoshio Kawabe, Shigeki Takeuchi, Keiji Sasaki, and Hideki Fujiwara  (poster)

• Observation of spatial properties of beam-like type-II spontaneous parametric down-conversion

• CREST&QNN'03 Joint International Workshop, abstract 161, Awaji Yumebutai International Conference Center (2003).

2002 / 3件

• Jun-ichi Hotta, Hidehisa Takasaki,  Hideki Fujiwara, and Keiji Sasaki  (poster)

• Precise Analysis of Optically Trapped Particle Position and Interaction Forces in the Vicinity of an Interface

• Asia Nano 2002, abstract p. 154, Nippon Kagaku Miraikan, Tokyo (2002).

• Hideki Fujiwara and Keiji Sasaki (poster)

• Optical confinement within a Random Medium

• 10th Anniversary RIES-Hokudai International Symposium (The 4th RIES-Hokudai Symposium 機), Sapporo, Japan (2002).

• Akito Chiba,   Hideki Fujiwara, Jun-ichi Hotta, Shigeki Takeuchi, and Keiji Sasaki

• Resonant frequency control of a Microspherical cavity by temperature adjustment

• 10th Anniversary RIES-Hokudai International Symposium (The 4th RIES-Hokudai Symposium 機), Sapporo, Japan (2002).

2001 / 5件

• Hideki Fujiwara and Keiji Sasaki

• Lasing Emission from a Random Medium composed of Thulium-ion-doped Glass Particles and Titanium Dioxide Powders

• Optical Engineering for Sensing and Nanotechnology (ICOSN 2001), abstract p. 190, Yokohama, Japan (2001).

• Hideki Fujiwara and Keiji Sasaki

• Random Lasing of a Thulium-ion-doped Glass Powder Film

• The 4th Pacific Rim Conference on Lasers and Electro-Optics (CLEO / Pacific Rim 2001), abstract p. II-432, Chiba, Japan (2001).

• Keiji Sasaki and Hideki Fujiwara (poster)

• Photon Confinement within a Random Medium Composed of Thulium-ion-doped Glass Particles

• 10th International Conference on Unconventional Photoactive Systems, abstract p. C69, Les Diablerets, Switzerland (2001).

• Hideki Fujiwara and Keiji Sasaki (Invited)

• Lasing and Manipulation of  Nanoparticles

• Multi-dimensional Microscopy 2001 (MDM 2001)(The 3 rd Asia-Pacific International Symposium on Confocal Microscopy and Related Technologies), abstract p. 63, Melbourne, Australia (2001).

• Wataru Inami, Hideki Fujiwara, Yoshimasa Kawata, Keiji Sasaki (poster)

• Radiation force determined by the multiscattering between the spherical sphere and the substrate

• Multi-dimensional Microscopy 2001 (MDM 2001) (The 3 rd Asia-Pacific International Symposium on Confocal Microscopy and Related Technologies), abstract p. 27, Melbourne, Australia (2001).

2000 / 6件

• Hideki Fujiwara and Keiji Sasaki

• Upconversion-lasing glass microsphere for near-field scanning optical microscopy

• Sixth International Conference on Optics within Life Sciences (OWLS VI), abstract p.14, Sydney, Australia (2000).

• K. Sasaki and Hideki Fujiwara (poster)

• Cavity Quantum Electrodynamics and Lasing Dynamics within Microspheres

• The 8th JST International Symposium, abstract p.83, Nara, Japan (2000).

• Hideki Fujiwara and Keiji Sasaki (poster)

• Microspherical Lasing and Random Lasing of Rare-earth Ion-doped Glass Particles

• The 8th JST International Symposium, abstract p.105, Nara, Japan (2000).

• Hideki Fujiwara and Keiji Sasaki (poster)

• Observation of Microspherical Cavity Quantum Electrodynamics within Dye-doped Polymer Particles

• International Workshop on Photonic and Electromagnetic Crystal Structures (PECS), abstract p.W4-24, Sendai, Japan (2000).

• Hideki Fujiwara, Keiji Sasaki, and Hiroshi Masuhara (poster)

• Microspherical Cavity Effect on Energy Transfer Processes between Pyrene and Perylene Molecules

• 2000 International Chemical Congress of Pacific Basin Societies (Pacifichem 2000),  abstract p. ANYL429, Hawaii, USA (2000).

• Keiji Sasaki and Hideki Fujiwara (poster)

• Lasing of a Nonluminescent Microsphere dispersed in Dye Solution

• 2000 International Chemical Congress of Pacific Basin Societies (Pacifichem 2000),  abstract ANYL418, Hawaii, USA (2000).

1999 / 1件

• Keiji Sasaki and Hideki Fujiwara (?)

• Upconversion Lasing of a Tm3+-Doped Fluoride Glass Microsphere

• 18th Congress of the International Commission for Optics (1999).

1998 / 1件

• Hideki Fujiwara, Keiji Sasaki, and Hiroshi Masuhara (poster)

• Enhanced pyrene fluorescence in a polymer microsphere

• International Quantum Electronics Conference '98, abstract p.194, San Francisco, USA (1998).

1997 / 1件

• Hideki Fujiwara, Keiji Sasaki, and Hiroshi Masuhara (poster)

• Pyrene fluorescence dynamics in a polymer microspherical cavity

• The 8th International Conference on Unconventional Photoactive Systems, abstract p.86, Nara, Japan (1997).

1995 / 2件

• Keiji Sasaki, Hideki Fujiwara, Hiroyuki Yoshikawa and Hiroshi Masuhara (?)

• Laser Oscillation, Photon Tunneling, and Fluorescence Excitation of a Single Microsphere in Solution

• International Conference on Recent Progress and Future Prospects of Molecular Electronic Spectroscopy, abstract p.83 (1995).

• Keiji Sasaki, Hideki Fujiwara, and Hiroshi Masuhara (?)

• An Optically Manipulated Lasing Microparticle as a Probe of a Near Field Scanning Optical Microscope

• International Conference on Near Field Optics and Related Techniques, abstract p.101-102 (1995).