Prof. Hiroyuki Shiraga Profile

Prof. Hiroyuki Shiraga

at Osaka Univ

SPIE Involvement:

Author | Editor

Publications (21)

Proceedings Article | 5 March 2021 Presentation

Single shot deposition of nanodot array by laser-induced forward transfer using interference pattern

Yoshiki Nakata, Eiki Hayashi, Koji Tsubakimoto, Hiroyuki Shiraga, Aiko Narazaki, Tatsuya Shoji, Kenta Ushiro, Yasuyuki Tsuboi

Proceedings Volume 11674, 116740S (2021) https://doi.org/10.1117/12.2587150

KEYWORDS: Plasmonics, Light harvesting, Laser processing, Gold, Femtosecond phenomena, Array processing

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Proceedings Article | 20 February 2017 Paper

Numerical model calculation of X-ray framing camera

M. Koga, H. Shiraga

Proceedings Volume 10328, 103280L (2017) https://doi.org/10.1117/12.2269495

KEYWORDS: X-rays, X-ray imaging, Electrons, Microchannel plates, Image fusion, Plasma, Capillaries, Diffusers, Data modeling

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Proceedings Article | 20 February 2017 Paper

Review of concepts and applications of image sampling on high-speed streak cameras

H. Shiraga

Proceedings Volume 10328, 103280R (2017) https://doi.org/10.1117/12.2269493

KEYWORDS: Image fusion, Streak cameras, Laser welding, Plasma, X-ray imaging, Picosecond phenomena, X-rays, Image sensors, Temporal resolution, CCD cameras

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Proceedings Article | 20 February 2017 Paper

Large aperture fast neutron imaging detector with 10-ns time resolution

Y. Arikawa, S. Matsubara, Y. Abe, Y. Kato, H. Kishimoto, A. Yogo, H. Nishimura, M. Nakai, H. Shiraga, S. Fujioka, H. Azechi, Y. Otake, K. Mima, Y. Honda

Proceedings Volume 10328, 103280T (2017) https://doi.org/10.1117/12.2270527

KEYWORDS: Image sensors, Sensors, Image resolution, Scintillators, X-rays, X-ray imaging, Radiography, Iron, Lead, Liquids, Nondestructive evaluation

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Proceedings Article | 1 May 2015 Paper

World's largest high energy petawatt laser LFEX as a user's facility

H. Shiraga, N. Miyanaga, J. Kawanaka, S. Tokita, T. Jitsuno, Y. Nakata, S. Fujioka, H. Azechi

Proceedings Volume 9515, 95150S (2015) https://doi.org/10.1117/12.2181654

KEYWORDS: Optical amplifiers, Picosecond phenomena, Mirrors, Fusion energy, Physics, Pulsed laser operation, Fiber amplifiers, Diffraction gratings, Laser energy, Laser irradiation

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Proceedings Article | 4 December 2012 Paper

Influences of oil-contamination on LIDT and optical properties in dielectric coatings

H. Murakami, T. Jitsuno, S. Motokoshi, E. Sato, K. Mikami, K. Kato, T. Kawasaki, Y. Nakata, N. Sarukura, T. Shinizu, H. Shiraga, N. Miyanaga, H. Azechi

Proceedings Volume 8530, 853024 (2012) https://doi.org/10.1117/12.977705

KEYWORDS: Contamination, Optical coatings, Mirrors, Dielectrics, Nitrogen, Optical properties, Dielectric mirrors, Laser induced damage, Silica, Metals

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Proceedings Article | 6 December 2010 Paper

Oil-contamination problem in large-scale pulse-compressor

T. Jitsuno, H. Murakami, S. Motokoshi, E. Saato, K. Mikami, K. Kato, T. Kawasaki, Y. Nakata, N. Sarukura, T. Shinizu, H. Shiraga, N. Miyanaga, H. Azechi

Proceedings Volume 7842, 784221 (2010) https://doi.org/10.1117/12.867528

KEYWORDS: Contamination, Silica, Mirrors, Optical components, Laser damage threshold, Optical coatings, Pulsed laser operation, Laser applications, Laser induced damage, Photography

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Proceedings Article | 10 February 2009 Paper

Implosion and heating diagnostics of fast ignition laser fusion target with ultra-high-speed x-ray imaging

H. Shiraga, J. Zhong, M. Koga, T. Mochiyama, H. Azechi

Proceedings Volume 7126, 71261L (2009) https://doi.org/10.1117/12.822856

KEYWORDS: X-ray imaging, X-rays, Plasma, Streak cameras, Picosecond phenomena, Diagnostics, Laser welding, Cameras, Imaging spectroscopy, Gold

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Proceedings Article | 10 February 2009 Paper

Simultaneous measurement of imploded core and heating laser injection by using x-ray framing camera

Mayuko Koga, Takashi Fujiwara, Tatsuhiko Sakaiya, Myongdok Lee, Keisuke Shigemori, Hiroyuki Shiraga, Hiroshi Azechi

Proceedings Volume 7126, 71261K (2009) https://doi.org/10.1117/12.822039

KEYWORDS: X-rays, Microchannel plates, Cameras, X-ray imaging, Picosecond phenomena, Plasmas, Streak cameras, Imaging systems, Fusion energy, Photonics

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Proceedings Article | 20 September 2004 Paper

Experimental study on ablative stabilization of Rayleigh-Taylor instability of laser-irradiated targets

Keisuke Shigemori, Tatsuhiko Sakaiya, Kazuto Otani, Shinsuke Fujioka, Mitsuo Nakai, Hiroshi Azechi, Hiroyuki Shiraga, Yohei Tamari, Kazuki Okuno, Atsushi Sunahara, Hideo Nagatomo, Masakatsu Murakami, Katsunobu Nishihara, Yasukazu Izawa

Proceedings Volume 5448, (2004) https://doi.org/10.1117/12.548818

KEYWORDS: Laser ablation, X-rays, Laser irradiation, Electron transport, Convection, Physics, Optical simulations, Streak cameras, Laser engineering, Bromine

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Proceedings Article | 1 August 2003 Paper

High-speed X-ray radiographic measurement of laser-driven hydrodynamic instability

Hiroyuki Shiraga, Hiroshi Azechi, Mitsuo Nakai, Keisuke Shigemori, Masaharu Nishikino, Tatsuhiro Sakaiya, Shinsuke Fujioka, Yohei Tamari, Tatsuhiko Yamanaka

Proceedings Volume 4948, (2003) https://doi.org/10.1117/12.516778

KEYWORDS: X-rays, X-ray imaging, Laser ablation, Laser irradiation, Plasma, Spatial resolution, Moire patterns, Zone plates, Protactinium, Laser engineering

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Proceedings Article | 22 May 2002 Paper

Reconstruction of x-ray penumbral images based on a heuristic method

Shinya Nozaki, Yen-Wei Chen, Zensho Nakao, Hiroyuki Shiraga

Proceedings Volume 4667, (2002) https://doi.org/10.1117/12.467991

KEYWORDS: X-rays, Image analysis, X-ray imaging, Error analysis, Plasma, Algorithms, Computer simulations, Image resolution, Image restoration, Optimization (mathematics)

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Proceedings Article | 17 April 2001 Paper

Ultrafast one- and two-dimensional x-ray imaging by use of x-ray streak cameras with one- and two-dimensional image-sampling technique

Hiroyuki Shiraga, Manabu Heya, Shinsuke Fujioka, Noriaki Miyanaga, Masaaki Matsuoka, Hiroshi Azechi, Tatsuhiko Yamanaka

Proceedings Volume 4183, (2001) https://doi.org/10.1117/12.424297

KEYWORDS: X-rays, X-ray imaging, Streak cameras, Plasmas, Picosecond phenomena, Spatial resolution, Image fusion, Moire patterns, Ultrafast imaging, Temporal resolution

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Proceedings Article | 11 January 2000 Paper

Observation of low-mode implosion nonuniformity of plastic-shell targets in the acceleration phase

Manabu Heya, Hiroyuki Shiraga, Masaharu Nishikino, Shinsuke Fujioka, Kazuhisa Fujita, Yoshihiro Ochi, Nobuhiko Izumi, Noriaki Miyanaga, Hiroaki Nishimura, Hiroshi Azechi, Hideaki Takabe, Kunioki Mima, Tatsuhiko Yamanaka

Proceedings Volume 3886, (2000) https://doi.org/10.1117/12.375139

KEYWORDS: X-rays, Laser ablation, Plasma, Optical spheres, Sapphire, X-ray imaging, Glasses, Laser glasses, Pulsed laser operation, Rockets

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Proceedings Article | 11 January 2000 Paper

Indirect/direct hybrid drive implosion experiments with x-ray pre-irradiation

Masaharu Nishikino, Hiroyuki Shiraga, Noriaki Miyanaga, Hiroaki Nishimura, Keisuke Shigemori, Manabu Heya, Hiroshi Azechi, Mitsuo Nakai, Kunioki Mima, Hideaki Takabe, Sadao Nakai, Tatsuhiko Yamanaka

Proceedings Volume 3886, (2000) https://doi.org/10.1117/12.375140

KEYWORDS: X-rays, Plasma, Gold, X-ray imaging, Laser irradiation, Thermal effects, X-ray sources, Picosecond phenomena, Beam shaping, Laser energy

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Proceedings Article | 11 January 2000 Paper

Computational study of x-ray radiation effects on hydrodynamic instability

Naofumi Ohnishi, Hideo Nagatomo, Hideaki Takabe, Hiroaki Nishimura, Masaharu Nishikino, Hiroyuki Shiraga, Tatsuhiko Yamanaka

Proceedings Volume 3886, (2000) https://doi.org/10.1117/12.375141

KEYWORDS: Foam, X-rays, Gold, Plasma, Absorption, Fusion energy, Thin film coatings, Optical simulations, Opacity, Laser welding

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Proceedings Article | 11 January 2000 Paper

X-ray spectroscopic analysis of the influence of low-modal nonuniformity on the formation of a hot spark

Yoshihiro Ochi, Mitsuhiro Fukao, J. Sunahara, Hiroaki Nishimura, Kazuhisa Fujita, Tohru Kawamura, Hiroyuki Shiraga, Noriaki Miyanaga, Hiroshi Azechi, Hideaki Takabe, Kunioki Mima, Tatsuhiko Yamanaka, Sadao Nakai, Randolf Butzbach, Ingo Uschmann, Eckhart Foerster

Proceedings Volume 3886, (2000) https://doi.org/10.1117/12.375142

KEYWORDS: X-rays, Spectroscopy, Fusion energy, Argon, Picosecond phenomena, Laser irradiation, Spectrum analysis, X-ray imaging, Diagnostics, Plasma

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Proceedings Article | 23 July 1999 Paper

Progress of direct drive laser fusion research at ILE, Osaka

Kunioki Mima, Hiroshi Azechi, Hisanori Fujita, Nobuhiko Izumi, Takahisa Jitsuno, Yoshinori Kato, Tadashi Kanabe, Yoneyoshi Kitagawa, Ryosuke Kodama, Noriaki Miyanaga, Mitsuo Nakai, Masahiro Nakatsuka, Sadao Nakai, Hideo Nagatomo, Takayoshi Norimatsu, Katsunobu Nishihara, Hiroaki Nishimura, Hiroyuki Shiraga, Hideaki Takabe, Tatsuhiko Yamanaka

Proceedings Volume 3492, (1999) https://doi.org/10.1117/12.354229

KEYWORDS: Laser welding, Laser systems engineering, Plasma, Solid state lasers

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Proceedings Article | 8 December 1997 Paper

High-power CPA Nd:glass laser development at ILE

Hisanori Fujita, Yoshiaki Kato, Yoneyoshi Kitagawa, Ryosuke Kodama, Tadashi Kanabe, Takahisa Jitsuno, Hiroyuki Shiraga, Shuji Sakabe

Proceedings Volume 3047, (1997) https://doi.org/10.1117/12.294338

KEYWORDS: Optical amplifiers, Neodymium glass lasers, High power lasers, Laser development, Glasses, Fusion energy, Oscillators, Laser glasses, Picosecond phenomena, Mirrors

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Proceedings Article | 20 October 1992 Paper

Radiation damage of multilayer mirrors for soft x-ray lasers

Masami Tsukamoto, Masahito Niibe, Yutaka Watanabe, Akira Miyake, Takashi Iizuka, Yasuaki Fukuda, Yoshiaki Kato, Hiroyuki Shiraga, Hiroyuki Daido, Kensuki Murai, Ciaran Lewis, David Neely, Domhnail O'Neill

Proceedings Volume 1720, (1992) https://doi.org/10.1117/12.132129

KEYWORDS: Mirrors, X-rays, Plasma, Germanium, Particles, Reflectivity, X-ray lasers, Silicon, Light scattering, Multilayers

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Proceedings Article | 5 February 1992 Paper

Development of soft x-ray lasers at the Institute of Laser Engineering: recent results on Ge soft x-ray laser (Invited Paper)

Yoshiaki Kato, Hiroyuki Daido, Hiroyuki Shiraga, Masanobu Yamanaka, Hiromi Azuma, Kensuki Murai, E. Miura, G. Yuan, M. Ohmi, Kazuo Tanaka, Tadashi Kanabe, Masaru Takagi, Sadao Nakai, Ciaran Lewis, Domhnail O'Neill, David Neely, Kunio Shinohara, Masahito Niibe, Yasuaki Fukuda

Proceedings Volume 1551, (1992) https://doi.org/10.1117/12.134808

KEYWORDS: X-ray lasers, Germanium, X-rays, Mirrors, Spatial coherence, Laser engineering, Spectroscopy, Pulsed laser operation, Ions, Amplifiers

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