Dr. Kenji Torizuka Profile

Dr. Kenji Torizuka

Senior Researcher at Electronics and Photonics Research Institute

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Author

Publications (15)

Proceedings Article | 5 March 2021 Presentation

Optimization of laser-induced periodic surface structures formation on zirconia ceramic by ultrashort pulsed laser

Hideyuki Takada, Aiko Narazaki, Dai Yoshitomi, Kenji Torizuka, Yohei Kobayashi

Proceedings Volume 11673, 116730V (2021) https://doi.org/10.1117/12.2583379

KEYWORDS: Pulsed laser operation, Zirconium dioxide, Laser processing, Resistance, Optical lithography, Medical devices

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Proceedings Article | 20 February 2017 Paper

Ultrafast laser scribing of transparent conductive oxides in Cu(In,Ga)Se2 solar cells via laser lift-off process: the control of laser-induced damage

Aiko Narazaki, Tadatake Sato, Hiroyuki Niino, Hideyuki Takada, Kenji Torizuka, Jiro Nishinaga, Yukiko Kamikawa-Shimizu, Shogo Ishizuka, Hajime Shibata, Shigeru Niki

Proceedings Volume 10091, 100911E (2017) https://doi.org/10.1117/12.2266895

KEYWORDS: Copper indium gallium selenide, Transparent conductors, Pulsed laser operation, Solar cells, Laser ablation, Laser energy, Laser liftoff, Diffractive optical elements, Energy efficiency, Thin film solar cells

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Proceedings Article | 9 March 2016 Paper

Pulsewidth dependence of laser-induced periodic surface structure formed on yttria-stabilized zirconia polycrystal

Masayuki Kakehata, Hidehiko Yashiro, Ayako Oyane, Atsuo Ito, Kenji Torizuka

Proceedings Volume 9740, 97401G (2016) https://doi.org/10.1117/12.2209013

KEYWORDS: Ultrafast phenomena, Femtosecond phenomena, Surface roughness, Laser surface treatment, Metallo-dielectric periodic structures, Nonlinear response, Laser induced damage, Amplifiers, Dielectric polarization, Microscopes, Metals

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Proceedings Article | 5 June 2008 Paper

Passively stabilized Kerr-lens mode-locked diode-pumped Yb:YAG laser

Sadao Uemura, Kenji Torizuka

Proceedings Volume 7022, 70220K (2008) https://doi.org/10.1117/12.803937

KEYWORDS: Semiconductor lasers, Mode locking, Curium, Laser stabilization, Pulsed laser operation, Crystals, Thermal effects, Laser crystals, Mirrors, Continuous wave operation

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Proceedings Article | 29 February 2008 Paper

Laser-plasma scanning 3D display for putting digital contents in free space

Hideo Saito, Hidei Kimura, Satoru Shimada, Takeshi Naemura, Jun Kayahara, Songkran Jarusirisawad, Vincent Nozick, Hiroyo Ishikawa, Toshiyuki Murakami, Jun Aoki, Akira Asano, Tatsumi Kimura, Masayuki Kakehata, Fumio Sasaki, Hidehiko Yashiro, Masahiko Mori, Kenji Torizuka, Kouta Ino

Proceedings Volume 6803, 680309 (2008) https://doi.org/10.1117/12.768068

KEYWORDS: 3D displays, Free space, Laser applications, Plasmas, Cameras, Laser development, Analytical research, Clouds, 3D image processing, Laser systems engineering

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Proceedings Article | 10 June 2006 Paper

Time-domain aspect of carrier-envelope-phase control: field stabilized optical pulse generation

Kenji Torizuka, Hideyuki Takada, Masayuki Kakehata

Proceedings Volume 6344, 634401 (2006) https://doi.org/10.1117/12.693387

KEYWORDS: Oscillators, Mode locking, Modulators, Ultrafast phenomena, Second-harmonic generation, Beam splitters, Ferroelectric materials, Pulsed laser operation, Laser applications, Mirrors

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Proceedings Article | 13 April 2005 Paper

Precise control of timing and optical phase among multi-color femtosecond pulses

Kenji Torizuka, Yohei Kobayashi, Hideyuki Takada, Masayuki Kakehata, Dai Yoshitomi

Proceedings Volume 5725, (2005) https://doi.org/10.1117/12.590929

KEYWORDS: Optical parametric oscillators, Pulsed laser operation, Ultrafast phenomena, Curium, Mode locking, Laser applications, Oscillators, Optical amplifiers, Femtosecond phenomena, Mirrors

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Proceedings Article | 23 March 2005 Paper

Diode-pumped Yb:S-FAP CPA laser system for laser-Compton x-ray generation

Shinji Ito, Terunobu Nakajyo, Tatsuya Yanagida, Fumio Sakai, Ken-ichi Maeda, Kenji Torizuka

Proceedings Volume 5777, (2005) https://doi.org/10.1117/12.611208

KEYWORDS: Semiconductor lasers, X-ray lasers, X-rays, Amplifiers, Laser systems engineering, Laser applications, Pulsed laser operation, Crystals, Oscillators, Solids

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Proceedings Article | 28 January 2004 Paper

Synchronization of two different repetition-rate mode-locked laser oscillators for laser-Compton x-ray generation

Tatsuya Yanagida, Yohei Kobayashi, Kenichi Maeda, Shinji Ito, Fumio Sakai, Kenji Torizuka, Akira Endo

Proceedings Volume 5194, (2004) https://doi.org/10.1117/12.504000

KEYWORDS: Mode locking, X-rays, Pulsed laser operation, Femtosecond phenomena, Laser stabilization, X-ray lasers, Oscillators, Fiber lasers, Laser optics, Laser development

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Proceedings Article | 25 June 2003 Paper

Thermal distortion of the wavefront in a high-intensity laser system for inverse Compton x-ray generation

Hiroki Ishikawa, Shinji Ito, Akira Endo, Tatsuya Yanagida, Kenji Torizuka, Fumio Sakai, Masakazu Washio

Proceedings Volume 4969, (2003) https://doi.org/10.1117/12.478976

KEYWORDS: Ytterbium, Wavefronts, X-rays, Femtosecond phenomena, Optical amplifiers, Laser systems engineering, Wavefront sensors, Pulsed laser operation, Thermal effects, Sapphire lasers

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Proceedings Article | 6 June 2002 Paper

Production of picosecond square-shaped ultraviolet pulses for low-emittance electron bunch generation from an RF photocathode

Akira Yada, Kazuya Takasago, Shinji Ito, Tatsuya Yanagida, Jinfeng Yang, Masakazu Washio, Kenji Torizuka, Akira Endo

Proceedings Volume 4629, (2002) https://doi.org/10.1117/12.469490

KEYWORDS: Pulsed laser operation, Electron beams, Picosecond phenomena, Ultraviolet radiation, Nonlinear crystals, Femtosecond phenomena, Laser systems engineering, Oscillators, Pulse shaping, X-rays

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Proceedings Article | 28 December 2001 Paper

Optically phase-locked femtosecond laser oscillator for precise synchronization with femtosecond x-ray beams

Akira Endo, Hideyuki Nagaoka, Taisuke Miura, Kazuya Takasago, Kenji Torizuka

Proceedings Volume 4500, (2001) https://doi.org/10.1117/12.452972

KEYWORDS: Femtosecond phenomena, Signal detection, X-rays, Mode locking, Oscillators, Pulsed laser operation, Laser systems engineering, Laser stabilization, Sapphire lasers, Laser scattering

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Proceedings Article | 4 June 1999 Paper

Measurement of the timing jitter in a kilohertz regenerative amplifier system

Taisuke Miura, Katsuyuki Kobayashi, Zhigang Zhang, Kenji Torizuka, Fumihiko Kannari

Proceedings Volume 3616, (1999) https://doi.org/10.1117/12.351833

KEYWORDS: Oscillators, Picosecond phenomena, Upconversion, Amplifiers, Femtosecond phenomena, Optical amplifiers, X-rays, Mode locking, Pulsed laser operation, Fourier transforms

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Proceedings Article | 4 June 1999 Paper

Sub-100-fs timing jitter of mode-locked laser

Katsuyuki Kobayashi, Taisuke Miura, Zhigang Zhang, Kenji Torizuka

Proceedings Volume 3616, (1999) https://doi.org/10.1117/12.351832

KEYWORDS: Mode locking, Ferroelectric materials, Pulsed laser operation, Mirrors, Oscillators, Femtosecond phenomena, Spectrum analysis, Photodiodes, Laser stabilization, X-rays

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Proceedings Article | 13 May 1998 Paper

Cavity-mode analysis of a Kerr-lens mode-locked laser with a novel five-mirror cavity

Taisuke Miura, Katsuyuki Kobayashi, Zhigang Zhang, Kenji Torizuka, Fumihiko Kannari

Proceedings Volume 3267, (1998) https://doi.org/10.1117/12.308117

KEYWORDS: Mode locking, Mirrors, Continuous wave operation, Laser crystals, Laser resonators, Laser applications, Semiconductors, Crystals, Gaussian beams, Optical alignment

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Showing 5 of 15 publications

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