Faculty Profiles - 松山　智至

Papers - 松山　智至

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Development of full-field x-ray fluorescence microscope using total-reflection mirrors Reviewed

S. Matsuyama, J. Yamada, S. Yasuda, Y. Kohmura, M. Yabashi, T. Ishikawa, K. Yamauchi

SPIE Optics+Photonics2017 page： 193 - 193 2017.8

Shock response to solid germanium

Kohei Miyanishi, Norimasa Ozaki, Takeshi Matsuoka, Satoshi Matsuyama, Kenjiro Takahashi, Hideaki Habara, Tatiana Pikuz, Anatoly Faenov, Kazuto Yamauchi, Ryosuke Kodama, Kazuo Tanaka, Yusuke Seto, Yoshinobu Tange, Toshinori Yabuuchi, Yuichi Inubushi, Tadashi Togashi, Makina Yabashi, Tetsuya Ishikawa, Michel Koenig, Tommaso Vinci, Takuo Okuchi, Nicholas Hartley, Osami Sakata, Toshimori Sekine, Emma McBride

2017.7

Development of new diagnostics in the interests of pump-probe experiments Invited

T. Pikuz, A. Faenov, N. Ozaki. T. Matsuoka, B. Albertazzi, N. Hartely, S. Matsuyama, K. Yamauchi, H. Habara, Y. Inubushi, T. Togashi, H. Yumoto, H. Ohashi, Y. Tange, T. Yabuuchi, M. Yabashi, A. Grum-Grzhimailo, A. Casner, G. Rigon, M. Koenig, K. A. Tanaka, T. Ishikawa, R. Kodama

2017.6

Measurement of the X-ray Spectrum of a Free Electron Laser with a Wide-Range High-Resolution Single-Shot Spectrometer Reviewed

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

Applied Sciences Vol. 7 ( 6 ) page： 584-1 - 584-5 2017.6

Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI AG

We developed a single-shot X-ray spectrometer for wide-range high-resolution measurements of Self-Amplified Spontaneous Emission (SASE) X-ray Free Electron Laser (XFEL) pulses. The spectrometer consists of a multi-layer elliptical mirror for producing a large divergence of 22 mrad around 9070 eV and a silicon (553) analyzer crystal. We achieved a wide energy range of 55 eV with a fine spectral resolution of 80 meV, which enabled the observation of a whole SASE-XFEL spectrum with fully-resolved spike structures. We found that a SASE-XFEL pulse has around 60 longitudinal modes with a pulse duration of 7.7 +/- 1.1 fs.

DOI： 10.3390/app7060584

Web of Science

Development of new diagnostics in the interests of pumpprobe experiments Invited

T. Pikuz, A. Faenov, N. Ozaki, T. Matsuoka, B. Albertazzi, N.Hartely, S. Matsuyama, K. Yamauchi, H. Habara, Y. Inubushi, T. Togashi, H. Yumoto, H. Ohashi, Y. Tange, T. Yabuuchi, M. Yabashi, A. Grum-Grzhimailo, A. Casner, G. Rigon, M. Koenig, K. A. Tanaka, T. Ishikawa, R. Kodama

2017.6

Chemical etching of silicon carbide in pure water by using platinum catalyst Reviewed

A. Isohashi, P. V. Pho, S. Matsuyama, Y. Sano, K. Inagaki, Y. Morikawa, K. Yamauchi

Applied Phsyics Letters Vol. 110 ( 20 ) page： 201601 2017.5

Language：English Publishing type：Research paper (scientific journal) Publisher：AMER INST PHYSICS

Chemical etching of SiC was found to proceed in pure water with the assistance of a Pt catalyst. A 4H-SiC (0001) wafer was placed and slid on a polishing pad in pure water, on which a thin Pt film was deposited to give a catalytic nature. Etching of the wafer surface was observed to remove protrusions preferentially by interacting with the Pt film more frequently, thus flattening the surface. In the case of an on-axis wafer, a crystallographically ordered surface was obtained with a straight step-and-terrace structure, the height of which corresponds to that of an atomic bilayer of Si and C. The etching rate depended upon the electrochemical potential of Pt. The vicinal surface was observed at the potential at which the Pt surface was bare. The primary etching mechanism was hydrolysis with the assistance of a Pt catalyst. This method can, therefore, be used as an environmentally friendly and sustainable technology. Published by AIP Publishing.

DOI： 10.1063/1.4983206

Web of Science

50-nm-resolution full-field X-ray microscope without chromatic aberration using total-reflection imaging mirrors Reviewed

S. Matsuyama, S. Yasuda, J. Yamada, H. Okada, Y. Kohmura, M Yabashi, T. Ishikawa, K. Yamauchi

Scientific Reports Vol. 7 page： 46358 2017.4

Language：English Publishing type：Research paper (scientific journal) Publisher：NATURE PUBLISHING GROUP

X-ray spectromicroscopy with a full-field imaging technique is a powerful method for chemical analysis of heterogeneous complex materials with a nano-scale spatial resolution. For imaging optics, an X-ray reflective optical system has excellent capabilities with highly efficient, achromatic, and long-workingdistance properties. An advanced Kirkpatrick-Baez geometry that combines four independent mirrors with elliptic and hyperbolic shapes in both horizontal and vertical directions was developed for this purpose, although the complexity of the system has a limited applicable range. Here, we present an optical system consisting of two monolithic imaging mirrors. Elliptic and hyperbolic shapes were formed on a single substrate to achieve both high resolution and sufficient stability. The mirrors were finished with a similar to 1-nm shape accuracy using elastic emission machining. The performance was tested at SPring-8 with a photon energy of approximately 10 keV. We could clearly resolve 50-nm features in a Siemens star without chromatic aberration and with high stability over 20 h. We applied this system to X-ray absorption fine structure spectromicroscopy and identified elements and chemical states in specimens of zinc and tungsten micron-size particles.

DOI： 10.1038/srep46358

Web of Science

PubMed

4枚の形状可変鏡に基づく開口数可変集光光学系を用いた回折限界Ｘ線集光

松山智至

X線結像光学ニューズレター 2017.4

Achromatic and High-Resolution Full-Field X-ray Microscope and its Applicaiton

S. Matsuyama, J. Yamada, S. Yasuda, Y. Kohmura, H. Okadam, Y. Sano, M. Yabashi, T. Ishikawa, K. Yamauchi

International conference on X-ray optics and applications 2017 (XOPT'17) in OPIC2017 page： 10 - 11 2017.4

High-magnification X-ray imaging mirror system consisting of elliptical concave and hyperbolic convex mirrors

J. Yamada, S. Matsuyama, S. Yasuda, Y. Sano, Y. Kohmura, M. Yabashi, T. Ishikawa, K. Yamauchi

International conference on X-ray optics and applications 2017 (XOPT'17) in OPIC2017 page： 66 - 66 2017.4

Hard X-ray Split-and-Delay Optics with wavefront Division at SACLA

T. Hirano, T. Osaka, Y. Sano, Y. Inubushi, T. Togashi, I. Inoue, S. Matsuyama, K. Tono, K. Yamauchi, M. Yabashi

International conference on X-ray optics and applications 2017 (XOPT'17) in OPIC2017 page： 34 - 34 2017.4

Development of calibration method for X-ray single-grating interferometry

T. Inoue, S. Matsuyama, S. Kawai, H. Yumoto, Y. Inubushi, T. Koyama, K. Tono, H. Ohashi, T. Katayama, S. Goto, T. Ishikawa, M. Yabashi, K. Yamauchi

International conference on X-ray optics and applications 2017 (XOPT'17) in OPIC2017 page： 59 - 60 2017.4

Development of an adaptive x-ray focusing system based on the combination of piezoelectric bimorph mirror and mirror bender

T. Goto, S. Matsuyama, H. Hayashi, J. Sonoyama, K. Akiyama, H. Nakamori, Y. Sano, K. Yamauchi

International conference on X-ray optics and applications 2017 (XOPT'17) in OPIC2017 page： 72 - 72 2017.4

Development of a multilayer KB mirror sysem for sub-10nm XFEL focusing

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

International conference on X-ray optics and applications 2017 (XOPT'17) in OPIC2017 page： 61 - 62 2017.4

パワーレーザーとXFELを用いた動的超高圧下の物質変形・相転移に関する研究 Reviewed

尾崎典雅

2017.3

全反射ミラーを用いた高分解能かつ色収差のない結像型X線顕微鏡の開発ー様々な観察法への応用ー

松山智至, 安田周平, 山田純平, 佐野泰久, 香村芳樹, 矢橋牧名, 石川哲也, 山内和人

アブストラクト集 Vol. P02 2017.3

全反射ミラーを用いた高分解能かつ色収差のない結像型X線顕微鏡の開発ー様々な観察法への応用ー

松山智至, 安田周平, 山田純平, 佐野泰久, 香村芳樹, 矢橋牧名, 石川哲也, 山内和人

2017年度精密工学会春季大会学術講演会 2017.3

高エネルギー密度科学のための新しい実験ステーション Reviewed

松岡健之, 尾崎典雅

2017.3

Simulation of concave-convex imaging mirror system for development of a compact and achromatic full-field x-ray microscope Reviewed

J. Yamada, S. Matsuyama, Y. Sano, K. Yamauchi

Applied Optics Vol. 56 ( 4 ) page： 967 - 974 2017.2

Language：English Publishing type：Research paper (scientific journal) Publisher：OPTICAL SOC AMER

We propose the use of two pairs of concave-convex mirrors as imaging optics for the compact full-field x-ray microscope with high resolution and magnification factors. The optics consists of two pairs of hyperbolic convex and elliptical concave mirrors with the principal surface near the object, consequently enabling the focal length to be 10 times shorter than conventional advanced Kirkpatrick-Baez mirror optics. This paper describes characteristics of the optics calculated by ray-tracing and wave-optical simulators. The expected spatial resolution is approximately 40 nm with a wide field of view of more than 10 mu m and a total length of about 2 m, which may lead to the possibility of laboratory-sized, achromatic, and high-resolution full-field x-ray microscopes. (C) 2017 Optical Society of America

DOI： 10.1364/AO.56.000967

Web of Science

PubMed

Ultrafast observation of lattice dynamics in laser-irradiated gold foils Reviewed

N. J. Hartley, N. Ozaki, T. Matsuoka, B. Albertazzi, A. Faenov, Y. Fujimoto, H. Habara, M. Harmand, Y. Inubushi, T. Katayama, M. Koenig, A. Krygier, P. Mabey, Y. Matsumura, S. Matsuyama, E. E. McBride, K. Miyanishi, G. Morard, T. Okuchi, T. Pikuz, O. Sakata, Y. Sano, T. Sato, T. Sekine, Y. Seto, K. Takahashi, K. A. Tanaka, Y. Tange, T. Togashi, Y. Umeda, T. Vinci, M. Yabashi, T. Yabuuchi, K. Yamauchi, R. Kodama

Applied Physics Letters Vol. 110 ( 7 ) page： 071905 - 071905 2017.2

Language：English Publishing type：Research paper (scientific journal) Publisher：AMER INST PHYSICS

We have observed the lattice expansion before the onset of compression in an optical-laser-driven target, using diffraction of femtosecond X-ray beams generated by the SPring-8 Angstrom Compact Free-electron Laser. The change in diffraction angle provides a direct measure of the lattice spacing, allowing the density to be calculated with a precision of +/- 1%. From the known equation of state relations, this allows an estimation of the temperature responsible for the expansion as <1000 K. The subsequent ablation-driven compression was observed with a clear rise in density at later times. This demonstrates the feasibility of studying the dynamics of preheating and shock formation with unprecedented detail. Published by AIP Publishing.

DOI： 10.1063/1.4976541

Web of Science

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