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Dive into the research topics where Tatsuki Okamoto is active.

Publication


Featured researches published by Tatsuki Okamoto.


international quantum electronics conference | 2007

24-mJ, 2-kHz pulse generation with a Q-switched Nd:YAG laser oscillator and fiber amplifier hybrid system

Keisuke Furuta; M. Seguchi; Tatsuki Okamoto; Junichi Nishimae; Koji Yasui

In this paper, we study the pulse generation with the experimental apparatus consists of an in-house Q-switched Nd:YAG rod laser oscillator and a Yb-doped fiber amplifier. As a result, we obtained an average output power of 48 W with a typical clean Q-switched pulse waveform at a repetition rate of 2 kHz. This is, to our knowledge, the highest pulse energy obtained with a solid-state-laser oscillator and a fiber-based amplifier scheme.


Archive | 2000

Optical system and apparatus for laser heat treatment and method for producing semiconductor devices by using the same

Tatsuki Okamoto; Tetsuya Ogawa; Keisuke Furuta; Hidetada Tokioka; Tomohiro Sasagawa; Junichi Nishimae; Mitsuo Inoue; Yukio Sato


Archive | 2002

Light converging optical system for converging light onto a reflecting optical-spatial modulator element and image displaying apparatus for displaying an image formed by light reflected by the reflecting optical-spatial modulator element

Junichi Nishimae; Akira Sekiguchi; Tomohiro Sasagawa; Yoshiyuki Goto; Kohei Teramoto; Hiroyuki Kawano; Tatsuki Okamoto; Yukio Satou; Atsuhiro Sono


Archive | 1992

Semiconductor switching apparatus

Hiroshi Itou; Akihiko Iwata; Tatsuki Okamoto; Yoshihiro Ueda; Yoichiro Tabata


Archive | 2002

Laser annealing optical system and laser annealing apparatus using the same

Tatsuki Okamoto; Tetsuya Ogawa; Yukio Sato; Junichi Nishimae


Archive | 1990

Metallic vapor laser apparatus

Akihiko Iwata; Shigeo Ueguri; Kazuhiko Hara; Tatsuki Okamoto; Yoshihiro Ueda; Hiroshi Itoh


Archive | 2002

Image displaying apparatus for displaying an image according to light reflected by an optical spatial modulator element

Hiroyuki Kawano; Junichi Nishimae; Tatsuki Okamoto; Yukio Satou; Atsuhiro Sono


Archive | 1999

Uneven-pattern reading apparatus

Tatsuki Okamoto; Yukio Sato; Junichi Nishimae; Hiroyuki Kawano


Archive | 2000

Irregular pattern reader

Tatsuki Okamoto; Yukio Sato; Junichi Nishimae; Hiroyuki Kawano


Archive | 1988

Optical pulse waveform shaper

Tatsuki Okamoto; Shigeo Ueguri; Kazuhiko Hara; Akihiko Iwata; Yoshihiro Ueda

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