Hideyuki Ohtake
Graduate University for Advanced Studies
Japanese Journal of Applied Physics | 2002
Yuji Suzuki; Shingo Ono; H. Murakami; Toshimasa Kozeki; Hideyuki Ohtake; Nobuhiko Sarukura; Genta Masada; Hiroyuki Shiraishi; Ichiro Sekine
Using large-sized Li2B4O7 crystals, 0.43 J, 266 nm pulses are obtained from a 10 Hz Nd:YAG laser with a total conversion efficiency of 30.5%. Moreover, 4 W operation for over 15 h is demonstrated.
Advanced Solid-State Lasers (2002), paper WC5 | 2002
Hidetoshi Murakami; Shingo Ono; Yuji Suzuki; Toshimasa Kozeki; Hideyuki Ohtake; Nobuhiko Sarukura; Hiroki Sato; Susumu Machida; Kiyoshi Shimamura; Tsuguo Fukuda
Coaxially-pumped large-aperture Ce3+:LiCaAlF6 power-amplifier module for the TW ultraviolet CPA laser system is demonstrated to have 98-mJ output with 25% extraction efficiency. Additionally newly-in vented homogeni zed- gain, side-pump, power-amplifier scheme for further energy scaling is successfully operated.
Optical Terahertz Science and Technology (2005), paper ME1 | 2005
Shingo Saito; Masaya Nagai; Atsushi Syouji; Hideyuki Ohtake; Toshiaki Bessho; Toshiharu Sugiura; Tomoya Hirosumi; Makoto Yoshida; Koichiro Tanaka; Kiyomi Sakai
The enhancement and spectral change of terahertz wave generation were observed under the phase-matching condition of 1mm-thick 110 CdTe wafer and NIR laser pulse excitation. For terahertz generation and tuning, the phase-matching condition is important.
Advanced Solid-State Lasers (2001), paper MB16 | 2001
Hideyuki Ohtake; Yuji Suzuki; Nobuhiko Sarukura; Shingo Ono; Akio Nakanishi; Takeyo Tsukamoto; Seiji Nishizawa; Michelle L. Stock; Makoto Yoshida; Heirich Endert
Intense THz radiation is generated from an InAs emitter in a 2-T magnetic field irradiated with 1.04-µm, 80-fs, 180mW, fiber laser pulses. The THz radiation can beeven detected by a pyroelectric thermal receiver.
Advanced Solid State Lasers (1999), paper PD9 | 2001
Zhenlin Liu; Shinji Izumida; Shingo Ono; Hideyuki Ohtake; Nobuhiko Sarukura
We have demonstrated high-average power mode-locked Ti:sapphire laser with newly-invented intra-cavity cw-amplification scheme. This scheme can be applicable for the power scaling of other lasers.
Archive | 2004
Hideyuki Ohtake; Makoto Yoshida; Koichiro Tanaka; Masaya Nagai
Archive | 2011
Hideyuki Ohtake; Yuzuru Uehara; Jun Takayanagi
Archive | 2005
Hideyuki Ohtake; Toshiharu Sugiura; Toshiaki Bessho; Koichiro Tanaka; Masaya Nagai; Yutaka Kadoya
Archive | 2004
Gyu Choen Cho; Hideyuki Ohtake; Michiharu Ohta
Archive | 2009
Hideyuki Ohtake; Yuki Ichikawa; Yuzuru Uehara; Koichiro Tanaka; Masaya Nagai
