Dr. Tetsuya Kawachi
Principal Researcher at QST
SPIE Involvement:
Conference Program Committee | Author
Publications (31)

Proceedings Article | 8 June 2023 Poster + Paper
Eugene Vishnyakov, Akito Sagisaka, Koichi Ogura, Tatiana Pikuz, Chris Armstrong, Sergey Pikuz, Bruno Gonzalez-Izquierdo, Timur Zh. Esirkepov, Wenchao Yan, Tae Moon Jeong, Sushil Singh, Prokopis Hadjisolomou, Ondrej Finke, Gabriele Maria Grittani, Michal Nevrkla, Carlo Maria Lazzarini, Andriy Velyhan, Takehito Hayakawa, Yuji Fukuda, James Koga, Masahiko Ishino, Kotaro Kondo, Yasuhiro Miyasaka, Akira Kon, Masaharu Nishikino, Yevhen Nosach, Danila Khiklukha, Ilya Tsygvintsev, Deepak Kumar, Jaroslav Nejdl, Daniele Margarone, Pavel Sasorov, Masaki Kando, Hiromitsu Kiriyama, Georg Korn, Kiminori Kondo, Sergei Bulanov, Tetsuya Kawachi, Alexander Pirozhkov
Proceedings Volume 12582, 125820E (2023) https://doi.org/10.1117/12.2665527
KEYWORDS: Diagnostics, Spectroscopy, X-rays, Extreme ultraviolet, Specular reflections, Spectrographs, Electrons, Scintillators

Proceedings Article | 14 March 2018 Presentation
Hajime Okada, Noboru Hasegawa, Katsuhiro Mikami, Toshiyuki Kitamura, Shuji Kondo, Masaharu Nishikino, Tetsuya Kawachi
Proceedings Volume 10511, 105110U (2018) https://doi.org/10.1117/12.2291157
KEYWORDS: Nd:YAG lasers, Pulsed laser operation, Oscillators, Laser systems engineering, Optical amplifiers, Crystals, Laser development, Thermal effects, Energy efficiency, Inspection

SPIE Journal Paper | 9 February 2018 Open Access
Shinri Kurahashi, Katsuhiro Mikami, Toshiyuki Kitamura, Noboru Hasegawa, Hajime Okada, Shuji Kondo, Masaharu Nishikino, Tetsuya Kawachi, Yoshinori Shimada
JARS, Vol. 12, Issue 01, 015009, (February 2018) https://doi.org/10.1117/12.10.1117/1.JRS.12.015009
KEYWORDS: Inspection, Laser systems engineering, Lawrencium, Remote sensing, Laser development, Crystals, Laser crystals, Pulsed laser operation, Optical amplifiers, Mirrors

Proceedings Article | 17 May 2017 Presentation + Paper
A. Faenov, T. Pikuz, M. Ishino, N. Inogamov, V. Zhakhovsky, I. Skobelev, N. Hasegawa, M. Nishikino, M. Kando, R. Kodama, T. Kawachi
Proceedings Volume 10243, 102430S (2017) https://doi.org/10.1117/12.2264966
KEYWORDS: Foam, X-ray lasers, Laser ablation, Metals, Gold, Copper, Aluminum, Dielectrics, X-rays, Laser induced fluorescence, Picosecond phenomena

Proceedings Article | 14 March 2017 Paper
Masaharu Nishikino, Noboru Hasegawa, Takuro Tomita, Yasuo Minami, Takashi Eyama, Naoya Kakimoto, Rui Izutsu, Motoyoshi Baba, Tetsuya Kawachi, Tohru Suemoto
Proceedings Volume 10091, 100910O (2017) https://doi.org/10.1117/12.2255725
KEYWORDS: Laser ablation, Femtosecond phenomena, X-ray lasers, Laser processing, Interferometers, Reflectivity, Metals, X-rays, Gold, X-ray imaging, Picosecond phenomena, Mirrors

Proceedings Article | 22 September 2015 Paper
M. Nishikino, T. Kawachi, N. Hasegawa, M. Ishino, Y. Minami, T. Suemoto, N. Ohnishi, A. Ito, K. Sato, A. Faenov, N. Inogamov, M. Yamagiwa
Proceedings Volume 9589, 958902 (2015) https://doi.org/10.1117/12.2186363
KEYWORDS: Laser ablation, X-ray lasers, X-rays, Femtosecond phenomena, Picosecond phenomena, Plasma, X-ray imaging, Double sideband modulation, Laser processing, Mirrors

Proceedings Article | 22 September 2015 Open Access Paper
Noboru Hasegawa, Masaharu Nishikino, Takuro Tomita, Naofumi Ohnishi, Atsushi Ito, Takashi Eyama, Naoya Kakimoto, Rui Idutsu, Yasuo Minami, Motoyoshi Baba, Anatoly Faenov, Nail Inogamov, Tetsuya Kawachi, Mitsuru Yamagiwa, Tohru Suemoto
Proceedings Volume 9589, 95890A (2015) https://doi.org/10.1117/12.2186744
KEYWORDS: Picosecond phenomena, Laser ablation, X-rays, Sapphire lasers, Imaging systems, X-ray lasers, Reflectivity, Surface roughness, X-ray imaging, Platinum

Proceedings Article | 22 September 2015 Paper
K. Janulewicz, C. M. Kim, H. Stiel, T. Kawachi, M. Nishikino, N. Hasegawa
Proceedings Volume 9589, 95890N (2015) https://doi.org/10.1117/12.2190178
KEYWORDS: Polarization, X-ray lasers, Amplifiers, Plasma, Oscillators, Plutonium, Beam splitters, Magnetism, Photonics, Silver

Proceedings Article | 22 September 2015 Paper
Masahiko Ishino, Noboru Hasegawa, Masaharu Nishikino, Tatiana Pikuz, Igor Skobelev, Anatoly Faenov, Nail Inogamov, Tetsuya Kawachi, Mitsuru Yamagiwa
Proceedings Volume 9589, 958904 (2015) https://doi.org/10.1117/12.2186053
KEYWORDS: Picosecond phenomena, X-ray lasers, Laser ablation, Laser induced fluorescence, CMOS sensors, Cameras, Aluminum, Copper, Visible radiation, Plasma

Proceedings Article | 5 August 2015 Open Access Paper
Hiromitsu Kiriyama, Yoshihiro Ochi, Masaharu Nishikino, Keisuke Nagashima, Tetsuya Kawachi, Ryoji Itakura, Akira Sugiyama, Masaki Kando, A. Pirozhkov, Mamiko Nishiuchi, Sergei Bulanov, Kimonori Kondo, Yoshiaki Kato
Proceedings Volume 9532, 95320A (2015) https://doi.org/10.1117/12.2185763
KEYWORDS: Plasma, Laser systems engineering, Optical amplifiers, Mirrors, Pulsed laser operation, Terahertz radiation, Laser induced damage, X-ray lasers, High power lasers, Vacuum ultraviolet

Proceedings Article | 27 September 2013 Paper
Masahiko Ishino, Anatoly Faenov, Momoko Tanaka, Satoshi Tamotsu, Tatiana Pikuz, Noboru Hasegawa, Masaharu Nishikino, Nail Inogamov, Igor Skobelev, Vladimir Fortov, Genri Norman, Sergey Starikov, Vladimir Stegailov, Takeshi Kaihori, Tetsuya Kawachi, Mitsuru Yamagiwa
Proceedings Volume 8849, 88490F (2013) https://doi.org/10.1117/12.2022425
KEYWORDS: Aluminum, Gold, Copper, Silicon, Zirconium, X-ray lasers, Scanning electron microscopy, Laser ablation, Silver, X-rays

Proceedings Article | 27 September 2013 Paper
M. Nishikino, N. Hasegawa, T. Tomita, Y. Minami, R. Takei, M. Baba, T. Eyama, S. Takayoshi, T. Kawachi, D. Hatomi, N. Ohnishi, M. Yamagiwa, T. Suemoto
Proceedings Volume 8849, 88490E (2013) https://doi.org/10.1117/12.2022834
KEYWORDS: Femtosecond phenomena, Laser ablation, Picosecond phenomena, X-rays, Platinum, X-ray imaging, Interferometers, Atomic force microscopy, X-ray lasers, Laser processing

Proceedings Article | 27 September 2013 Paper
T. Imazono, M. Koike, T. Kawachi, N. Hasegawa, M. Koeda, T. Nagano, H. Sasai, Y. Oue, Z. Yonezawa, S. Kuramoto, M. Terauchi, H. Takahashi, N. Handa, T. Murano
Proceedings Volume 8848, 884812 (2013) https://doi.org/10.1117/12.2024652
KEYWORDS: Diffraction gratings, Diffraction, Spectrographs, Multilayers, X-rays, Optical design, Energy efficiency, Holography, Gold, Spherical lenses

Proceedings Article | 27 September 2013 Paper
Hiroyuki Daido, Yoji Suzuki, Tetsuya Kawachi, Takeshi Fukuda, Toshio Nakagiri, Masanori Kaku, Shoichi Kubodera, Alexander Pirozhkov
Proceedings Volume 8849, 884908 (2013) https://doi.org/10.1117/12.2022938
KEYWORDS: Sodium, Vacuum ultraviolet, Magnesium fluoride, Transmittance, Lamps, Liquids, Ultraviolet radiation, Refractive index, Excimer lasers, Solids

Proceedings Article | 11 December 2012 Paper
Proceedings Volume 8678, 86780B (2012) https://doi.org/10.1117/12.2003489
KEYWORDS: Laser induced fluorescence, Crystals, X-rays, Sensors, Laser crystals, Free electron lasers, X-ray imaging, Diffraction, Ions, Mirrors

Proceedings Article | 6 October 2011 Paper
Chul Min Kim, Karol Janulewicz, Holger Stiel, Masaharu Nishikino, Noboru Hasegawa, Tetsuya Kawachi, Jongmin Lee
Proceedings Volume 8140, 814008 (2011) https://doi.org/10.1117/12.893468
KEYWORDS: Polarization, X-ray lasers, Picosecond phenomena, Light sources, Amplifiers, Interference (communication), X-rays, Physics, Performance modeling, Wave propagation

Proceedings Article | 5 October 2011 Paper
Noboru Hasegawa, Yoshihiro Ochi, Tetsuya Kawachi, Masaharu Nishikino, Masahiko Ishino, Takashi Imazono, Takeshi Kaihori, Akira Sasaki, Kota Terakawa, Yasuo Minami, Takuro Tomita, Minoru Yamamoto, Yoshifumi Umeda, Mitsuru Yamagiwa, Tohru Suemoto
Proceedings Volume 8140, 81400G (2011) https://doi.org/10.1117/12.893442
KEYWORDS: Picosecond phenomena, Interferometers, X-ray lasers, Sapphire lasers, Mirrors, Laser ablation, Platinum, Beam splitters, X-rays, Streak cameras

Proceedings Article | 28 September 2011 Paper
T. Imazono, M. Koike, T. Kawachi, M. Koeda, T. Nagano, H. Sasai, Y. Oue, Z. Yonezawa, S. Kuramoto, K. Sano
Proceedings Volume 8139, 81390V (2011) https://doi.org/10.1117/12.893382
KEYWORDS: Diffraction gratings, Diffraction, Spectrographs, Lawrencium, Holography, X-rays, Optical design, Transmission electron microscopy, Energy efficiency, Wavefronts

Proceedings Article | 28 September 2011 Paper
Masahiko Ishino, Masataka Kado, Kunio Shinohara, Yoshimasa Yamamoto, Itaru Hirai, Maki Kishimoto, Masaharu Nishikino, Noboru Hasegawa, Satoshi Tamotsu, Keiko Yasuda, Tetsuya Kawachi
Proceedings Volume 8139, 81390R (2011) https://doi.org/10.1117/12.892864
KEYWORDS: X-rays, X-ray imaging, Microscopes, Gold, Plasma, Polymethylmethacrylate, Thin films, Pulsed laser operation, X-ray sources, Photons

Proceedings Article | 28 February 2011 Paper
N. Inogamov, S. Anisimov, V. Zhakhovsky, A. Ya. Faenov, Yu. V. Petrov, V. Khokhlov, V. Fortov, M. Agranat, S. Ashitkov, P. Komarov, I. Yu. Skobelev, Y. Kato, T. Pikuz, V. Shepelev, Y. Fukuda, M. Tanaka, M. Kishimoto, M. Ishino, M. Nishikino, M. Kando, T. Kawachi, M. Nagasono, H. Ohashi, M. Yabashi, K. Tono, Y. Senba, T. Togashi, T. Ishikawa
Proceedings Volume 7996, 79960T (2011) https://doi.org/10.1117/12.887429
KEYWORDS: Laser induced fluorescence, Crystals, Laser ablation, Aluminum, Laser crystals, Picosecond phenomena, Dielectrics, Tellurium, Ionization, Extreme ultraviolet

Proceedings Article | 25 February 2010 Paper
Masahiko Ishino, Masataka Kado, Masaharu Nishikino, Kunio Shinohara, Satoshi Tamotsu, Keiko Yasuda, Noboru Hasegawa, Maki Kishimoto, Toshiyuki Ohba, Tetsuya Kawachi
Proceedings Volume 7589, 75891B (2010) https://doi.org/10.1117/12.839945
KEYWORDS: X-rays, Gold, Plasmas, Thin films, X-ray imaging, Pulsed laser operation, CCD cameras, Silicon, Spatial resolution, X-ray sources

Proceedings Article | 29 September 2009 Paper
T. Kawachi, M. Kishimoto, M. Kado, Y. Ochi, N. Hasegawa, M. Tanaka, M. Nishikino, M. Ishino, T. Imazono, T. Ohba, T. Kaihori, M. Koike, K. Namikawa, T. Suemoto, K. Terakawa, T. Tomita, N. Sarukura, H. Nishimura, A. Faenov, S. Bulanov, H. Daido
Proceedings Volume 7451, 745107 (2009) https://doi.org/10.1117/12.825662
KEYWORDS: X-ray lasers, X-rays, Mirrors, Plasma, Crystals, Laser ablation, Interferometers, Laser induced fluorescence, Optical amplifiers, Laser crystals

Proceedings Article | 7 May 2009 Paper
Masaki Kando, Alexander Pirozhkov, Yuji Fukuda, Timur Esirkepov, Izuru Daito, Keigo Kawase, Jinglong Ma, Liming Chen, Yukio Hayashi, Michiaki Mori, Koichi Ogura, Hideyuki Kotaki, Akito Sagisaka, Evgeny Ragozin, Anatoly Faenov, Tatiana Pikuz, Hiromitsu Kiriyama, Hajime Okada, Takashi Kameshima, James Koga, Tetsuya Kawachi, Hiroyuki Daido, Toyoaki Kimura, Yoshiaki Kato, Toshiki Tajima, Sergei Bulanov
Proceedings Volume 7359, 73590K (2009) https://doi.org/10.1117/12.820463
KEYWORDS: Mirrors, Plasmas, Pulsed laser operation, Extreme ultraviolet, Signal detection, Polarization, Infrared radiation, Electromagnetic radiation, Solitons, Charge-coupled devices

Proceedings Article | 14 September 2005 Paper
T. Kawachi, K. Nagashima, M. Kishimoto, N. Hasegawa, M. Tanaka, Y. Ochi, M. Nishikino, H. Kawazome, R. Tai, K. Namikawa, Y. Kato
Proceedings Volume 5919, 59190L (2005) https://doi.org/10.1117/12.616417
KEYWORDS: X-ray lasers, X-rays, Amplifiers, Polarization, Picosecond phenomena, Neodymium glass lasers, Target detection, Mirrors, Plasma, Speckle

Proceedings Article | 19 December 2003 Paper
Keisuke Nagashima, Momoko Tanaka, Masaharu Nishikino, Maki Kishimoto, Masataka Kado, Tetsuya Kawachi, Noboru Hasegawa, Yoshihiro Ochi, Kouta Sukegawa, Renzhong Tai, Yoshiaki Kato
Proceedings Volume 5197, (2003) https://doi.org/10.1117/12.503910
KEYWORDS: X-ray lasers, X-rays, Refraction, Picosecond phenomena, Spatial coherence, Pulsed laser operation, Plasmas, Laser development, Optical pumping, Diffraction

Proceedings Article | 19 December 2003 Paper
Proceedings Volume 5197, (2003) https://doi.org/10.1117/12.503823
KEYWORDS: Plasmas, X-ray lasers, Molybdenum, Silver, Pulsed laser operation, Interferometry, Prisms, Interferometers, Picosecond phenomena, Neon

Proceedings Article | 12 December 2003 Paper
Masayuki Suzuki, Hiroyuki Daido, Fumiaki Matsuoka, Etsuya Yanase, Mamiko Nishiuchi, Keiko Suto, A. Sasaki, Koichi Yamakawa, Tetsuya Kawachi, Keisuke Nagashima, Takatsugu Oketa, Takeyoshi Nakayama, Ingo Uschmann, Eckhart Foerster, Henryk Fiedorowicz
Proceedings Volume 5228, (2003) https://doi.org/10.1117/12.536791
KEYWORDS: X-rays, Pulsed laser operation, Plasma, Spectroscopy, Laser energy, Krypton, Nitrogen, Oxygen, Ions, Xenon

Proceedings Article | 12 December 2001 Paper
Masataka Kado, Tetsuya Kawachi, Momoko Tanaka, Noboru Hasegawa, Kenjiro Takahashi, Shinichi Namba, Kouta Sukegawa, Akira Sasaki, Peixiang Lu, Huajing Tang, Keisuke Nagashima, Hiroyuki Daido, Alexander Kilpio, Yoshiaki Kato
Proceedings Volume 4505, (2001) https://doi.org/10.1117/12.450603
KEYWORDS: X-ray lasers, Plasma, Silver, Tin, Picosecond phenomena, Mirrors, Laser energy, X-rays, Pulsed laser operation, Electrons

Proceedings Article | 12 December 2001 Paper
Noboru Hasegawa, Alexander Kilpio, Keisuke Nagashima, Tetsuya Kawachi, Masataka Kado, Momoko Tanaka, Shinichi Namba, Kenjiro Takahashi, Kouta Sukegawa, Peixiang Lu, Huajing Tang, Maki Kishimoto, Tai Renzhong, Hiroyuki Daido, Yoshiaki Kato
Proceedings Volume 4505, (2001) https://doi.org/10.1117/12.450592
KEYWORDS: X-ray lasers, X-rays, Amplifiers, Spatial coherence, Titanium, Picosecond phenomena, Laser systems engineering, Sapphire lasers, Spectroscopy, Harmonic generation

Proceedings Article | 11 January 2000 Paper
Masataka Kado, Tetsuya Kawachi, Noboru Hasegawa, Momoko Tanaka, Kouta Sukegawa, Keisuke Nagashima, Akira Nagashima, Yoshiaki Kato
Proceedings Volume 3886, (2000) https://doi.org/10.1117/12.375119
KEYWORDS: X-ray lasers, Laser systems engineering, Pulsed laser operation, Plasmas, Laser energy, Refraction, Laser development, Amplifiers, X-rays, Solids

Proceedings Article | 21 October 1999 Paper
Masataka Kado, Akira Nagashima, Keisuke Nagashima, Tetsuya Kawachi, Noboru Hasegawa, Momoko Tanaka, T. Hosokai, Kouta Sukegawa, A. Sasaki, Yoshiaki Kato
Proceedings Volume 3776, (1999) https://doi.org/10.1117/12.366674
KEYWORDS: X-ray lasers, Laser systems engineering, Pulsed laser operation, Plasmas, Laser energy, Refraction, Optical amplifiers, Solids, Laser development, Metals

Showing 5 of 31 publications
Conference Committee Involvement (2)
Compact Radiation Sources from EUV to Gamma-rays: Development and Applications II
9 April 2025 | Prague, Czech Republic
Compact Radiation Sources from EUV to Gamma-rays: Development and Applications
25 April 2023 | Prague, Czech Republic
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