Publication

Press release in Japanese (井上が責任著者の論文)

1. X線回折に潜む非線形性の発見 (2023年10月) 

2. X線レーザーを照射された原子は遅れて動き始める (2022年6月)

3. ホロー原子を使ったX線レーザーの短パルス化(2021年10月) 

4. 高強度X線が引き起こす特殊な融解現象 (2021年3月) 

5. SACLAの明るさを6倍にすることに成功」(2019年3月)

6.  電子ビームの時間幅「1000兆分の１秒」の評価法を開発(2018年8月)

7. X線ハーモニックセパレーター(2018年3月)

8. フェムト秒で起こるX線損傷過程の観測に成功 (2016年1月) 

9. X線自由電子レーザーの可干渉性を可視化(2015年9月)

Preprint

[1] I. Inoue, R. Robles, A. Halavanau, V. Guo, T. M. Linker A. Benediktovitch, S. Chuchurka, M. H. Seaberg, Y. Sun, D. Zhu, D. Cesar, Y. Ding, V. Esposito, P. Franz, N. S. Sudar, Z. Zhang, T. Osaka, G. Yamaguchi, Y. Sano, K. Yamauchi, J. Yamada, U. Bergmann, M. F. Kling, C. Pellegrini, M. Yabashi, N. Rohringer, T. Sato, A. Marinelli,

"Experimental demonstration of attosecond hard X-ray pulses", 

arXiv:2506.07968 

[2] T. Fujita, Y. Kono, Y. Chen, J. Moesgaard, S. Takahashi, A. Makareviciute, S. Kakizawa, D. Campi, M. Bernasconi, K. Ohara, I. Inoue, Y. Hayashi, M. Yabashi, E. Nishibori, R. Mazzarello, S. Wei,

"From Continuous to First-Order-Like: Amorphous-to-Amorphous Transition in Phase-Change Materials", 

arXiv:2504.07154 

[3] M. Sugahara, S. Maki-Yonekura, I. Inoue, K. Takaba, S. Narai, H. Naitow, J. Kang, K. Tono, K. Numata, T. Ishikawa, M. Yabashi, K. Yonekura,

"High throughput protein serial crystallography using a grease matrix and a large-area support film",

bioRxiv

https://doi.org/10.1101/2025.01.31.635837

[4] T. Kroll, M. Doyle, A. Halavanau, T. M. Linker, J. Everts, Y. Michine, F. D. Fuller, C. Weninger, R. Alonso-Mori, C. Pellegrini, A. Benediktovich, M. Yabashi, I. Inoue, Y. Inubushi, T. Osaka, T. Hara, J. Yamada, J. Kern, J. Yano, V. K. Yachandra, N. Rohringer, H. Yoneda, U. Bergmann,

"Observation of Multiplet Lines in Seeded Stimulated Mn Kα1 X-ray Emission",

arXiv:2503.03993

[5] R. G. Radloff, F. F. Zimmermann, S. Li, S. Kuschel, A. Ulmer, Y. Sun, T. Sato, P. Sun, J. Haber, D. Zhu, M. Tegze, G. Faigel, M. R. Ware, J. T. O'Neal, J. Yamada, T. Osaka, R, Zierold, C. Hedrich, D. Kazazis, Y. Ekinci, M. Yabashi, I. Inoue, A. Aquila, M. Liang, A. Marinelli, T. Gorkhover,

"Fluorescence intensity correlations enable 3D imaging without sample rotations",

arXiv:2510.24386

Peer reviewed paper

2026

[1] H. Yamazaki, Y. Shimizu, K. Tsubota, K. Tahara, S. Shimizu, T. Koyama, H. Yumoto, T. Osaka, I. Inoue, M. Yabashi, H. Ohashi,

"Channel-cut monochromator withstanding incident powers above 400 W on undulator beamlines",

J. Synchrotron Rad. 33,  (2026).

https://doi.org/10.1107/S1600577525009695

[2] Y. Inubushi, G. Yamaguchi, J. Yamada,  Y. Kubota,  I. Inoue,  T. Osaka,  M. Yabashi,

"Simultaneous lasing of Ni Kα and Cu Kα lasers from an alloy foil irradiated with an intense X-ray free-electron laser pulse",

J. Synchrotron Rad. 33,  (2026).

[3] H. Mimura, G. Yamaguchi, H. Motoyama, S. Egawa, J. Guo, Y. Hayashi, H. Yumoto, T. Koyama, H. Yamazaki, Y. Senba, S. Goto, I. Inoue, K. Tamasaku, T. Osaka, J. Yamada, H. Ohashi, M. Yabashi,

"High-speed imaging of cutting and electrical discharge machining (EDM) in thin metals and fluids using high-intensity 100 keV X-rays",

accepted.

 2025

[1] I. Inoue*, T. Osaka, V. Tkachenko, T. Hara, K. J. Kapcia, Y. Inubushi, S. Kawaguchi, J. Yamada, E. Nishibori, M. Yabashi, B. Ziaja,

“High-intensity X-ray pump-monochromatic X-ray probe technique across time zero”,

Optica 12, 530 (2025).

[2] I. Inoue*, T. Sato, R. Robles, M. H. Seaberg, Y. Sun, D. Zhu, D. Cesar, Y. Ding, V. Esposito, P. Franz, V. Guo, A. Halavanau, N. S. Sudar, Z. Zhang, Y. Inubushi, T. Osaka, G. Yamaguchi, Y. Sano, K. Yamauchi, M. Yabashi, A. Marinelli, J. Yamada,

“Nanofocused attosecond hard x-ray free-electron laser with intensity exceeding 10¹⁹ W/cm²”,

Optica 12, 309 (2025).

[3] I. Inoue*,  T. Osaka, T. Hara, H. Tanaka, M. Yabashi,

“Reflection self-seeding at SACLA”,

Synchrotron Radiation News 38, 17-22 (2025).

[4] V. Lipp, V. Tkachenko, I. Inoue, P. Heimann, A. Ryzhkova, A. Bashandi, B. Ziaja*,

Exploring x-ray irradiation conditions for triggering ultrafast diamond graphitization,

Phys. Rev. B 111, 024103 (2025).

[5] T. Osaka*, Y. Inubushi, T. Kameshima, I. Inoue, M. Yabashi,

Resolution enhancement on single-shot X-ray spectrometers using a detuned non-dispersive multi-crystal analyzer

J. Synchrotron Rad. 32, 288 (2025). 

[6] Y. Inubushi*, G. Yamaguchi, J. Yamada, Y. Kubota, I. Inoue, T. Osaka, T. Yabuuchi, K. Tono, M. Yabashi,

“Development of portable nanofocusing optics for X-ray free-electron laser pulses”,

J. Synchrotron Rad. 32, 534 (2025)

[7] T. Ohuchi*, Y. Higo, N. Tsujino, S. Kakizawa, Y. Seto, Y. Kono, H. Yumoto, T. Koyama, H. Yamazaki, Y. Senba,

H. Ohashi, I. Inoue, H. Ohsumi, Y. Hayashi, M. Yabashi, T. Irifune,

“A Stress Memory Effect in Olivine at Upper Mantle Pressures and Temperatures”,

Geo. Res. Lett. 52, e2025GL114960 (2025).

[8] M. Yonemura*, H. Nishibata, N. Ooura, K. Fujiwara, K. Kawano, I. Yamaguchi, T. Terai, Y. Inubushi, I. Inoue, T. Yabuuchi, K. Tono, M. Yabashi, 

"Dislocation density and reverse transformation kinetics in martensitic steel under cyclic ultrafast heating and cooling",

ISIJ International, ISIJINT-2025-033 (2025).

[9] T. M. Linker*, A. Halavanau, T. Kroll, A. Benediktovitch, Y. Zhang, Y. Michine, S. Chuchurka, Z. Abhari, D. Ronchetti, T. Fransson, C. Weninger, F. D. Fuller, A. Aquila, R. Alonso-Mori, S. Boutet, M. W. Guetg, A. Marinelli, A. A. Lutman, M. Yabashi, I. Inoue, T. Osaka, J. Yamada, Y. Inubushi, G. Yamaguchi, T. Hara, G. Babu, D. Salpekar, F. N. Sayed, P. M. Ajayan, J. Kern, J. Yano, V. K. Yachandra, M. F. Kling, C. Pellegrini, H. Yoneda, N. Rohringer, U. Bergmann*, 

"Attosecond inner-shell lasing at ångström wavelengths",

Nature 642, 934 (2025).

https://doi.org/10.1038/s41586-025-09105-9

[10] E. Ferrari, H. Ueda, D. Fainozzi, T. Osaka, F. Bencivenga, M. Burian, P. Carrara, J. Vila-Comamala, R. Cucini, C. David, A. Gessini, S. Gerber, A> Goloborodko, A. Hrabec, I. Inoue, Y. Inubushi, L. Diniz, M. Ludmila, R. Mincigrucci, E. Paris, B. Pedrini, B. Roesner, J. R. Rouxel, C. Serrat, V.  Scagnoli, K. Tono, M. Yabashi, J. Yamada, K. Yamamoto, M. C. Zdora, M. Beye, C. Masciovecchio, M.  Chergui, U. Staub, C. Svetina,

"All hard X-ray transient grating spectroscopy",

Commun. Phys. 8,  257 (2025).

[11] M. C. .Willson,　D. W. Paley, E. A. .Schriber, D. J. Rosenberg, D. M. .Tchon,  P. A. Kotei, K. Rani , C. Melendrez, M. Zeller, T. Kaushik, Q. Fan,  C. D. Liyanage, J. Kang, I. Inoue, K. Tono, Y. Inubushi, A. S. Brewster,* J. N. Hohman*,

"Supramolecular Support of Cuprophilic Network Bonding in 2-D Copper n-Alkanethiolates",

Inorg. Chem. 64, 16877 (2025).

https://doi.org/10.1021/acs.inorgchem.5c02024

[12] H. Yumoto, T. Koyama, H. Yamazaki, Y. Senba, Y. Hayashi, T. Osaka, I. Inoue, K. Tamasaku, S. Goto, M. Yabashi, H. Ohashi,

"An X-ray beamline for utilizing intense, high-energy undulator radiation",

J. Synchrotron Rad. 32 , 1201 (2025).

https://doi.org/10.1107/S1600577525006903

[13] S. Antunes, M. Stransky, V. Tkachenko, I. Inoue, P. Heimann, K. J. Kapcia, B. Ziaja*,

"Calculation of effective pump dose in X-ray-pump/X-ray-probe experiments",

J. Synchrotron Rad. 32, 1106  (2025).

https://doi.org/10.1107/S1600577525006939

[14] J. Yamada*, G. Yamaguchi*, I. Inoue, T. Osaka, Y. Inubushi, M. Yabashi,

"Automated alignment of XFEL nanofocusing mirrors via wavefront optimization",

J. Synchrotron Rad. 32,  (2025).

https://doi.org/10.1107/S1600577525008434

2024

[1] I. Inoue*, V. Tkachenko*, Y. Kubota, F. Dorchies, T. Hara, H. Höppner, Y. Inubushi, K. J. Kapcia, H. J. Lee, V. Lipp, P. Martinez, E. Nishibori, T. Osaka, S. Toleikis, J. Yamada, M. Yabashi, B. Ziaja*, P. A. Heimann*,

 “Interplay of thermal and nonthermal effects in x-ray-induced ultrafast melting”, 

Phys. Rev. B 110, L100102 (2024).

[2] I. Inoue* and B. Ziaja*,

“Perspective for in-volume machining of solid materials by undersurface focusing of x-ray pulses”,

J. Phys. B: At. Mol. Opt. Phys. 57, 192501 (2024).

[3] J. Yamada*, S. Matsuyama, I. Inoue, T. Osaka, T. Inoue, N. Nakamura, Y. Tanaka, Y. Inubushi, T. Yabuuchi, K. Tono, K. Tamasaku, H. Yumoto, T. Koyama, H. Ohashi, M. Yabashi, K. Yamauchi,

“Extreme focusing of hard X-ray free-electron laser pulses enables 7 nm focus width and 1022 W cm-2 intensity”, 

Nature Photon. 18, 685 (2024).

[4] K. Takaba, S. Maki-Yonekura, I. Inoue, K. Tono, Y. Fukuda, Y. Shiratori, Y. Peng, J. Morimoto, S. Inoue, T. Higashino, S. Sando, T. Hasegawa, M. Yabashi, K. Yonekura*,

“Comprehensive Application of XFEL Microcrystallography for Challenging Targets in Various Organic Compounds”,

J. Am. Chem. Soc. 146, 5872 (2024).

[5] J. Yan*, W. Qin, Y. Chen, W. Decking, P. Dijkstal, M. Guetg, I. Inoue, N. Kujala, S. Liu, T. Long, N. Mirian, G. Geloni,

“Terawatt-attosecond hard X-ray free-electron laser at high repetition rate”,

Nature Photon. 18, 1293 (2024).

[6] Q. Fan, M. C. Willson, K. A Foell, D. W. Paley, P. A. Kotei, E. A. Schriber, D. J. Rosenberg, K. Rani, D. M. Tchoń, M. Zeller, C. Melendrez, J. Kang, I. Inoue, S. Owada, K.Tono, M. Sugahara, A. S. Brewster*, J. N. Hohman*,

“Nucleophilic displacement reactions of silver-based metal–organic chalcogenolates”,

J. Am. Chem. Soc. 146, 30349 (2024).

[7] Y. Huang*, P. Sun*, S. W. Teitelbaum, H. Li, Y. Sun, N. Wang, S. Song, T. Sato, M. Chollet, T. Osaka, I. Inoue, R. A. Duncan, H. D. Shin, J. Haber, J. Zhou, M. Bernardi, M. Gu, J. M. Rondinelli, M. Trigo, M. Yabashi, A. A. Maznev, K. A. Nelson, D. Zhu, D. A. Reis*,

“Nanometer-scale acoustic wave packets generated by stochastic core-level photoionization events”,

Phys. Rev. X 14, 041010 (2024).

[8] W. Roseker*, R. Rysov, W. Jo, T. Osaka, A. Philippi-Kobs, L. Müller, M. Riepp, M. Walther, A. Zozulya, L. Bocklage, F. Lehmkühler, F. Westermeier, D. Weschke, M. Sprung, I. Inoue, M. Yabashi, G. Grübel,

“Hard X-ray Fourier transform holography at free electron lasers source”,

Sci. Rep. 14, 17480 (2024).

[9] T. Ohuchi*, Y. Higo, N. Tsujino, Y. Seto, S. Kakizawa, Y. Tange, Y. Miyagawa, Y. Kono, H. Yumoto, T. Koyama, H. Yamazaki, Y. Senba, H. Ohashi, I. Inoue, Y. Hayashi, M. Yabashi, T. Irifune,

“Transient creep in olivine at shallow mantle pressures: Implications for time‐dependent rheology in post‐seismic deformation”,

Geophys. Res. Lett. 51, e2024GL108356 (2024).

[10] Y. Funabiki, M. Iyota*, T. Shobu, T. Matsuda, H. Yumoto, T. Koyama, H. Yamazaki, Y. Senba, H. Ohashi, I. Inoue, G. Yamaguchi, Y. Hayashi, M. Yabashi, T. Sano,

“Convection and joint characteristics in aluminum alloy melting zone during resistance spot welding of dissimilar Fe-Al material in external magnetic field”,

J. Manufacturing Processes 115, 40 (2024).

[11] T. Higashino*, S. Inoue, S. Arai, S. Tsuzuki, H. Matsui, R. Kumai, K. Takaba, S. Maki-Yonekura, H. Kurokawa, I. Inoue, K. Tono, K. Yonekura, T. Hasegawa,

“Effects of thiophene-fused isomer on high-layered crystallinity in π-extended and alkylated organic semiconductors”,

Chem. Mat. 36, 848 (2024).

[12] M. Aleksich, Y. Cho, D. W. Paley, M. C. Willson, H. N. Nyiera, P. A. Kotei, V. Oklejas, D. W. Mittan‐Moreau, E. A. Schriber, K. Christensen, I. Inoue, S. Owada, K. Tono, M. Sugahara, S. Inaba‐Inoue, M. Vakili, C. J. Milne, F. DallAntonia, D. Khakhulin, F. Ardana‐Lamas, F. Lima, J. Valerio, H. Han, T. Gallo, H. Yousef, O. Turkot, I. J. B. Macias, T. Kluyver, P. Schmidt, L. Gelisio, A. R. Round, Y. Jiang, D. Vinci, Y. Uemura, M. Kloos, A. P. Mancuso, M. Warren, N. K. Sauter, J. Zhao, T. Smidt, H. J. Kulik, S. Sharifzadeh*, A. S. Brewster*, J. N. Hohman*,

“Ligand-Mediated Quantum Yield Enhancement in 1-D Silver Organothiolate Metal–Organic Chalcogenolates”, 

Adv. Funct. Mater. 2414914 (2024).

[13] Y. Kono*, K. Ohara, N. M. Kondo, Y. Higo, S. Kakizawa, H. Yumoto, T. Koyama, H. Yamazaki, Y. Senba, H. Ohashi, I. Inoue, Y. Hayashi, M. Yabashi,

“In situ high-pressure pair distribution function measurement of liquid and glass by using 100 keV pink beam”,

Rev. Sci. Instrum. 95, 013904 (2024).

[14] P. A. Kotei, D. W. Paley, V. Oklejas, D. W. Mittan-Moreau, E. A Schriber, M. Aleksich, M. C. Willson, I. Inoue, S. Owada, K. Tono, M. Sugahara, S. Inaba-Inoue, A. Aquila, F. Poitevin, J. P. Blaschke, S. Lisova, M. S. Hunter, R. G. Sierra, J. A. Gascón, N. K. Sauter, A. S. Brewster*, J. N. Hohman*,

“Engineering supramolecular hybrid architectures with directional organofluorine bonds”,

Small Sci. 4, 2300110 (2024).

[15] T. Fujita, Y. Chen, Y. Kono, S. Takahashi, H. Kasai, D. Campi, M. Bernasconi, K. Ohara, H. Yumoto, T. Koyama, H. Yamazaki, Y. Senba, H. Ohashi, I. Inoue, Y. Hayashi, M. Yabashi, E. Nishibori, R. Mazzarello*, S. Wei*,

“Pressure-induced reversal of Peierls-like distortions elicits the polyamorphic transition in GeTe and GeSe”,

Nature Commun. 14, 7851 (2024).

2023

[1] I. Inoue*, J. Yamada, K. J. Kapcia, M. Stransky, V. Tkachenko, Z. Jurek, T. Inoue, T. Osaka, Y. Inubushi, A. Ito, Y. Tanaka, S. Matsuyama, K. Yamauchi, M. Yabashi, B. Ziaja*,

“Femtosecond reduction of atomic scattering factors triggered by intense x-ray pulse”,

Phys. Rev. Lett. 131, 163201 (2023).

[2] B. Ziaja*, M. Stransky, K. J. Kapcia, and I. Inoue*,

“Modeling femtosecond reduction of atomic scattering factors in X-ray-excited silicon with Boltzmann kinetic equations”,

Atoms 11, 154 (2023).

[3] L. J. Støckler, L. Krause, B. Svane, K. Tolborg, B. Richter, S. Takahashi, T. Fujita, H. Kasai, M. Sugahara, I. Inoue, E. Nishibori, B. B. Iversen*,

“Towards pump–probe single-crystal XFEL refinements for small-unit-cell systems”,

IUCrJ 10, 103 (2023).

[4] K. Tamasaku*, M. Taguchi, I. Inoue, T. Osaka, Y. Inubushi, M. Yabashi, T. Ishikawa,

“Two-dimensional Kβ-Kα fluorescence spectrum by nonlinear resonant inelastic X-ray scattering”,

Nature Commun. 14, 4262 (2023).

[5] K. Takaba, S. Maki-Yonekura, I. Inoue, K. Tono, T. Hamaguchi, K. Kawakami, H. Naitow, T. Ishikawa, M. Yabashi, K. Yonekura*,

“Structural resolution of a small organic molecule by serial X-ray free-electron laser and electron crystallography”,

Nature Chem. 15, 491 (2023).

[6] M. Iyota*, T. Matsuda, T. Sano, M. Shigeta, T. Shobu, H. Yumoto, T. Koyama, H. Yamazaki, Y. Senba, H. Ohashi, S. Goto, I. Inoue, Y. Hayashi, K. Tamsaku, T. Osaka, J. Yamada, M. Yabashi,

“A study on convection in molten zone of aluminum alloy during Fe/Al resistance spot welding”,

J. Manufacturing Processes 94, 424 (2023).

[7] M. Doyle, A. Halavanau, Y. Zhang, Y. Michine, J. Everts, F. Fuller, R. Alonso-Mori, M. Yabashi, I. Inoue, T. Osaka, J. Yamada, Y. Inubushi, T. Hara, J. Kern, J. Yano, V. K. Yachandra, N. Rohringer, H. Yoneda, T. Kroll, C. Pellegrini, U. Bergman*,

“Seeded stimulated X-ray emission at 5.9 keV”,

Optica 10, 513 (2023).

[8] V. Lipp*, I. Inoue, B. Ziaja*,

“Advantages of Using Hard X-ray Photons for Ultrafast Diffraction Measurements”,

Photonics 10, 948 (2023).

[9] L. J. Støckler, R. S. Christensen, M. Kløve, A. D. Bertelsen, A. B. Borup, L. Krause,; S. Takahashi, T. Fujita,; H. Kasai, I. Inoue, E. Nishibori, B. B. Iverson*,

“Pair Distribution Function from Liquid Jet Nanoparticle Suspension using Femtosecond X‐ray Pulses”,

Chem. Phys. Chem, e202300407 (2023).

[10] E. Iwai*, I. Inoue, H. Maesaka, T. Inagaki, M. Yabashi, T. Hara, H. Tanaka,

“Spectral-brightness optimization of an X-ray free-electron laser by machine-learning-based tuning”,

J. Synchrotron Rad. 30, 1048 (2023).

[11] P. Heimann*, N. J. Hartley, I. Inoue, V. Tkachenko*, A. Antoine, F. Dorchies, R. Falcone, J. Gaudin, H. Höppner, Y. Inubushi, K. J. Kapcia, H. J. Lee, V. Lipp, P. Martinez, N. Medvedev, F. Tavella, S. Toleikis, M. Yabashi, T. Yabuuchi, J. Yamada, B. Ziaja,

“Non-thermal structural transformation of diamond driven by x-rays”,

Struct. Dyn. 10 (2023).

2022

[1] I. Inoue*, V. Tkachenko*, K. J. Kapcia, V. Lipp, B. Ziaja*, Y. Inubushi, T. Hara, M. Yabashi, E. Nishibori*, 

“Delayed onset and directionality of x-ray-induced atomic displacements observed on subatomic length scale”,

Phys. Rev. Lett. 128, 223203 (2022).

[2] I. Inoue*, E. Iwai, T. Hara, Y. Inubushi, K. Tono, M. Yabashi,

“Single-shot spectrometer using diamond microcystals for X-ray free-electron lasers”,

J. Synchrotron Rad. 29, 862 (2022).

[3] Y. Zhang*, T. Kroll, C. Weninger, Y. Michine, F. Fuller, D. Zhu, R. Alonso-Mori, D. Sokaras, A. A. Lutman, A. Halavanau, C. Pellegrini, A. Benediktovitch, M. Yabashi, I. Inoue, Y. Inubushi, T. Osaka, J. Yamada, G. Babu, D. Salpekar, F. N. Sayed, P. M. Ajayan, J. Kern, J. Yano, V. K. Yachandra, H. Yoneda, N. Rohringer*, U. Bergmann*,

“Generation of intense phase-stable femtosecond hard X-ray pulse pairs”

Proc. Natl. Acad. Sci. USA 119, e2119616119 (2022).

[4] A. Ikeda*, Y. H. Matsuda, X. Zhou, S. Peng, Y. Ishii, T. Yajima, Y. Kubota, I. Inoue, Y. Inubushi, K. Tono, M. Yabashi,

“Generating 77 T using a portable pulse magnet for single-shot quantum beam experiments”,

Appl. Phys. Lett. 120, 142403 (2022).

[5] H. Jang, S. Song, T. Kihara, Y. Liu, S.-J. Lee, S.-Y Park, M. Kim, H.-D. Kim, G. Coslovich,  S. Nakata, Y. Kubota, I. Inoue, K. Tamasaku, M. Yabashi, H. Lee, C. Song, H. Nojiri, B. Keimer, C.-C. Kao, J.-S. Lee*, “Characterization of photoinduced normal state through charge density wave in superconducting YBa2Cu3O6.67”, 

Sci. Adv. 8, eabk0832 (2022).

[6] M. Yonemura* H. Nishibata, R. Fujimura, N. Ooura, K. Hata, K. Fujiwara, Kawano, Kaori; I. Yamaguchi, T. Terai, Y. Inubushi, I. Inoue, T. Yabuuchi, K. Tono, M. Yabashi,

“Fine microstructure formation in steel under ultrafast heating and cooling”,

Sci. Rep. 12, 2237 (2022).

[7] T. Osaka*, I. Inoue, J. Yamada, Y. Inubushi, S. Matsumura, Y. Sano, K. Tono, K. Yamauchi, K. Tamasaku, M. Yabashi,

“Hard x-ray intensity autocorrelation using direct two-photon absorption”,

Phys. Rev. Res. 4, L012035 (2022).

[8] Y. Kono*, K. Ohara, N. M. Kondo, H. Yamada, S. Hiroi, F. Noritake, K. Nitta, O. Sekizawa, Oki, Y. Higo, Y. Tange, H. Yumoto, T. Koyama, H. Yamazaki, Y. Senba, H. Ohashi, S. Goto, I. Inoue, Y. Hayashi, K. Taisaku, T. Osaka, J. Yamada, M. Yabashi,

“Experimental evidence of tetrahedral symmetry breaking in SiO2 glass under pressure”,

Nature Commun. 13, 2292 (2022).

2021

[1] I. Inoue*, Y. Inubushi, T. Osaka, J. Yamada, K. Tamasaku, H. Yoneda, M. Yabashi,

“Shortening x-ray pulse duration via saturable absorption”,

Phys. Rev. Lett. 127, 163903 (2021).

[2] I. Inoue*, Y. Deguchi, B. Ziaja*, T. Osaka, M. M. Abdullah, Z. Jurek, N. Medvedev, V. Tkachenko, Y. Inubushi, H. Kasai, K. Tamasaku, T. Hara, E. Nishibori*, M. Yabashi,

“Atomic-scale visualization of ultrafast bond breaking in x-ray-excited diamond”,

Phys. Rev. Lett. 126, 117403 (2021).

[3] J. Yamada*, I. Inoue, T. Osaka, T. Inoue, S. Matsuyama, K. Yamauchi, M. Yabashi,

“Hard X-ray nanoprobe scanner”,

IUCrJ 8, 713 (2021). 

2020

[1] I. Inoue*, T. Osaka, T. Hara, M. Yabashi,

“Two-color X-ray free-electron laser consisting of broadband and narrowband beams”,

J. Synchrotron Rad. 27, 1720 (2020).

[2] H. Yumoto*, Y. Inubushi, T. Osaka, I. Inoue, T. Koyama, K. Tono, M. Yabashi, H. Ohashi,

“Nanofocusing optics for an X-ray free-electron laser generating an extreme intensity of 100 EW/cm2 using total reflection mirrors”,

Appl. Sci. 10, 2611 (2020).

[3] Y. Shinohara*, T. Osaka, I. Inoue, T. Iwashita, W. Dmowski, C. W. Ryu, Y. Sarathchandran, T. Egami,

“Split-pulse X-ray photon correlation spectroscopy with seeded X-rays from X-ray laser to study atomic-level dynamics”,

Nature Commun. 11, 6213 (2020).

[4] T. Inoue, S. Matsuyama*, J. Yamada, N. NakamuraT. Osaka, I. Inoue, Y. Inubushi, K. Tono, H. Yumoto, T. Koyama, H. Ohashi, M. Yabashi, K. Yamauchi,

“Generation of an X-ray nanobeam of a free-electron laser using reflective optics with speckle interferometry”,

J. Synchrotron Rad. 27, 883 (2020).

[5] A. Yoneyama*, R. Baba, D. Takamatsu, C. Kamezawa, I. Inoue, T. Osaka, S. Owada, M. Yabashi, “Feasibility study of interferometric phase-contrast X-ray imaging using the hard-X-ray free-electron laser of the SPring-8 Angstrom Compact Free-Electron Laser”,

J. Synchrotron Rad. 27, 1358 (2020).

[6] S. Matsumura*, T. Osaka, I. Inoue, S. Matsuyama, M. Yabashi, K. Yamauchi, Y. Sano,

“High-resolution micro channel-cut crystal monochromator processed by plasma chemical vaporization machining for a reflection self-seeded X-ray free-electron laser”,

Optics Express 28, 25706 (2020).

[7] N. Nakamura, S. Matsuyama*, T. Inoue, I. Inoue, J. Yamada, T. Osaka, M. Yabashi, T. Ishikawa, K. Yamauchi,

“Focus characterization of an X-ray free-electron laser by intensity correlation measurement of X-ray fluorescence”,

J. Synchrotron Rad. 27, 1366 (2020).

[8] H. Iwayama*, M. Nagasaka, I. Inoue, S. Owada, M. Yabashi, J. R. Harries,

“Demonstration of Transmission Mode Soft X-ray NEXAFS Using Third-and Fifth-Order Harmonics of FEL Radiation at SACLA BL1”,

Appl. Sci. 10, 7852 (2020).

2019

[1] I. Inoue*, T. Osaka, T. Hara, T. Tanaka, T. Inagaki, T. Fukui, S. Goto, Y. Inubushi, H. Kimura, R. Kinjo, H. Ohashi, K. Togawa, K. Tono, M. Yamaga, H. Tanaka, T. Ishikawa, M. Yabashi,

“Generation of narrow-band X-ray free-electron laser via reflection self-seeding”,

Nature Photonics 13, 319 (2019).

[2] I. Inoue*, K. Tamasaku, T. Osaka, Y. Inubushi, M. Yabashi,

“Determination of X-ray pulse duration via intensity correlation measurements of X-ray fluorescence”,

J. Synchrotron Rad. 26, 2050 (2019).

[3] T. Osaka*, I. Inoue, R. Kinjo, T. Hirano, Y. Morioka, Y. Sano, K. Yamauchi, M. Yabashi,

“A micro channel-cut crystal X-ray monochromator for a self-seeded hard X-ray free-electron laser”,

J. Synchrotron Rad. 26, 1496 (2019).

[4] M. Yonemura*, H. Nishibata, R. Fujimura, N. Ooura, K. Hata, K. Fujiwara, Kawano, K.I. Yamaguchi, T. Terai, Y. Inubushi, I. Inoue, T. Yabuuchi, K. Tono, M. Yabashi,

“Fine microstructure formation in steel under ultrafast heating”,

Sci. Rep. 9, 11241 (2019).

2018

[1] I. Inoue*, T. Hara, Y. Inubushi, K. Tono, T. Inagaki, T. Katayama, Y. Amemiya, H. Tanaka, M. Yabashi,

“X-ray Hanbury Brown-Twiss interferometry for determination of ultrashort electron-bunch duration”,

Phys. Rev. Accel. Beams 21, 080704 (2018).

[2] I. Inoue*, T. Osaka, K. Tamasaku, H. Ohashi, H. Yamazaki, S. Goto, M. Yabashi*,

“An X-ray harmonic separator for next-generation synchrotron X-ray sources and X-ray free-electron lasers”,

J. Synchrotron Rad. 25, 346 (2018).

[3] J. R. Harries*, H. Iwayama, S. Kuma, M. Iizawa, N. Suzuki, Y. Azuma, I. Inoue, S. Owada, T. Togashi, K. Tono, M. Yabashi, E. Shigemasa,

“Superfluorescence, free-induction decay, and four-wave mixing: Propagation of free-electron laser pulses through a dense sample of helium ions”,

Phys. Rev. Lett. 121, 263201 (2018).

[4] Y. Kohmura*, V. Zhakhovsky, D. Takei, Y. Suzuki, A. Takeuchi, I. Inoue, Y. Inubushi, Yuichi; N. Inogamov, T. Ishikawa, M. Yabashi,

“Nano-structuring of multi-layer material by single x-ray vortex pulse with femtosecond duration”,

Appl. Phys. Lett. 112, 123103 (2018).

[5] T. Inoue, S. Matsuyama*, S. Kawai, H. Yumoto, Y. Inubushi, T. Osaka, I. Inoue, T. Koyama, K. Tono, H. Ohashi, M. Yabashi, T. Ishikawa, K. Yamauchi,

“Systematic-error-free wavefront measurement using an x-ray single-grating interferometer”,

Rev. Sci. Instrum. 89, 043106 (2018).

[6] T. Hirano*, T. Osaka, Y. Morioka, Y. Sano, Y. Inubushi, T. Togashi, I. Inoue, S. Matsuyama, K. Tono, A. Robert, J. B. Hastings, K. Yamauchi, M. Yabashi,

“Performance of a hard X-ray split-and-delay optical system with a wavefront division”,

J. Synchrotron Rad. 25, 20 (2018).

[7] K. Tamasaku*, E. Shigemasa, Y. Inubushi, I. Inoue, T. Osaka, T. Katayama, M. Yabashi, A. Koide, T. Yokoyama, T. Ishikawa,

“Nonlinear spectroscopy with x-ray two-photon absorption in metallic copper”,

Phys. Rev. Lett. 121, 83901 (2018).

2017

[1] Y. Inubushi*, I. Inoue, J. Kim, A. Nishihara, S. Matsuyama, H. Yumoto, T. Koyama, K. Tono, H. Ohashi, K. Yamauchi, M. Yabashi,

“Measurement of the X-ray spectrum of a free electron laser with a wide-range high-resolution single-shot spectrometer”,

Appl. Sci. 7, 584 (2017).

[2] T. Osaka*, T. Hirano, Y. Morioka, Y. Sano, Y. Inubushi, T. Togashi, I. Inoue, K. Tono, A. Robert, K. Yamauchi, M. Yabashi,

“Characterization of temporal coherence of hard X-ray free-electron laser pulses with single-shot interferograms”,

IUCrJ 4, 728 (2017).

[3] A. Gorel, K. Motomura, H. Fukuzawa, R. B. Doak, M. L. Grünbein, M. Hilpert, I. Inoue, M. Kloos, G. Kovácsová, E. Nango, K. Nass, C. M. Rooms, R. L. Showman, R. Tanaka, K. Tono, Y. Jodi, M. Yabashi, S. Iwata, L. Four, K. Ueda, T. R. M. Barrens, I. Schlichting*,

“Multi-wavelength anomalous diffraction de novo phasing using a two-colour X-ray free-electron laser with wide tunability”,

Nature Commun. 8, 1170 (2017).

[4] A. Gorel, K. Motomura, H. Fukuzawa, R. B. Doak, M. L. Grünbein, M. Hilpert, I. Inoue, M. Kloos, G. Kovácsová, E. Nango, K. Nass, C. M. Rooms, R. L. Showman, R. Tanaka, K. Tono, Y. Jodi, M. Yabashi, S. Iwata, L. Four, K. Ueda, T. R. M. Barrens, I. Schlichting*,

“Two-colour serial femtosecond crystallography dataset from gadoteridol-derivatized lysozyme for MAD phasing”,

Scientific Data 4, 170188 (2017).

Before 2016 (when Ichiro was PhD student)

[1] I. Inoue*, Y. Inubushi, T. Sato, K. Tono, T. Katayama, T. Kameshima, K. Ogawa, T. Togashi, S. Owada, Y. Amemiya, T. Tanaka, T. Hara, M. Yabashi*,

“Observation of femtosecond X-ray interactions with matter using an X-ray–X-ray pump–probe scheme”,

Proc. Natl. Acad. Sci. USA 113, 1492 (2016).

[2] K. Tamasaku*, Y. Inubushi, I. Inoue, K. Tono, M. Yabashi, T. Ishikawa,

“Inline spectrometer for shot-by-shot determination of pulse energies of a two-color X-ray free-electron laser”, J. Synchrotron Rad. 23, 331 (2016).

[3] I. Inoue*, K. Tono, Y. Joti, T. Kameshima, K. Ogawa, Y. Shinohara, Y. Amemiya, M. Yabashi*,

“Characterizing transverse coherence of an ultra-intense focused X-ray free-electron laser by an extended Young’s experiment”,

IUCrJ 2, 620 (2015).

[4] I. Inoue, Y. Shinohara*, A. Watanabe, Y. Amemiya,

“Effect of shot noise on X-ray speckle visibility spectroscopy”,

Opt. Express 20, 26878 (2012).