Search Results - "Isao Matsushima"

A 37% Efficiency, Kilohertz Repetition Rate Cryogenically Cooled Ti:Sapphire Regenerative Amplifier by Matsushima, Isao, Yashiro, Hidehiko, Tomie, Toshihisa

“…We present a high-efficiency Ti:sapphire regenerative amplifier being developed as a pumping laser for a high-brilliance laser-plasma X-ray source operating at…”
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Nonlinear Amplification for a 10 W, 750-MHz Yb:Fiber Frequency Comb by Ishii, Hirotaka, Xu, Bo, Ma, Yuxuan, Matsushima, Isao, Nakajima, Yoshiaki, Schibli, Thomas, Zhang, Zhigang, Minoshima, Kaoru

“…In this study, a self-referenced 750-MHz Yb:fiber frequency comb was amplified to achieve an average power of 10 W with nonlinear amplification. Pulse duration…”
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Fast phase locking of a 750-MHz Yb:Fiber laser frequency comb using a high-speed piezo-transducer by Ma, Yuxuan, Xu, Bo, Ishii, Hirotaka, Meng, Fei, Nakajima, Yoshiaki, Schibli, Thomas, Matsushima, Isao, Zhang, Zhigang, Minoshima, Kaoru

“…We demonstrate a 750-MHz-spaced Yb:fiber frequency comb phase locked to a narrow linewidth CW laser by a single stack PZT actuator. Low phase noise and high…”
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Occupant Body Imaging based on Occupancy Grid Mapping by Kitamura, Takayuki, Kumagai, Taro, Takei, Takumi, Matsushima, Isao, Oishi, Noboru, Suwa, Kei

“…This paper presents vehicle occupant body imaging algorithms for detecting the presence of children that are left behind in vehicles. The proposed algorithms…”
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High-Repetition-Rate Electron-Beam-Pumped KrF Laser Technology for Inertial-Fusion-Energy Drivers by Okuda, Isao, Takahashi, Eiichi, Matsushima, Isao, Matsumoto, Yuji, Kato, Susumu, Owadano, Yoshiro

“…The development of a high-repetition-rate (rep-rate) electron-beam (e-beam)-pumped KrF laser is described. In this study, we aim to achieve pulsed laser…”
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Development of high-efficiency 10 kHzmJps Yb:YAG laser for industry by Matsushima, Isao, Tanabashi, Akihiro

“…We are currently developing a high-efficiency Yb:YAG regenerative amplifier pumped by CW diode lasers. The performance of the regenerative amplifier was…”
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Development of High-Efficiency 10 kHz mJ ps Yb:YAG Laser for Industry by MATSUSHIMA, Isao, TANABASHI, Akihiro

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Meteorological observations at Syowa Station and at Dome Fuji Station in 1997 by the 38th Japanese Antarctic Research Expedition by Yuji Esaki, Kuniaki Kurita, Isao Matsushima, Nobuhiko Kizu, Tetsuji Nakajima, Susumu Kaneto

“…This paper describes the results of meteorological observations at Syowa Station from February 1,1997 to January 31,1998,and at Dome Fuji Station from January…”
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Simultaneous Estimation of Walking Occupant Location and Stationary Occupant Respiratory Rate Using Millimeter-Wave Radar by Kitamura, Takayuki, Matsushima, Isao, Kageme, Satoshi

“…This study presents a novel method for simultaneously estimating walking occupant locations and stationary occupant respiratory rates in an indoor environment…”
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Simulation Studies on Hydrodynamic Instabilities in Inertial Confinement Fusion by Kato, Susumu, Tatebe, Osamu, Ishizaki, Ryuichi, Matsushima, Isao, Takahashi, Eiichi, Owadano, Yoshiro

“…Hydrodynamic simulation code that is based on the cubic interpolated pseudo-particle (CIP) scheme and the model of the equation of state is developed to…”
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Interferometry of KrF-laser-produced plasma by shortened Stokes pulse by TAKAHASHI, E, MATSUMOTO, Y, MATSUSHIMA, I, YASHIRO, H, OWADANO, Y

“…We have recently built an interferometer for diagnosis of KrF-laser-produced plasma using shortened Stokes pulses as probe light. This probe light is generated…”
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Temperature distribution measurement of laser produced plasma by X-ray photodiode array by KASAI, T, MATSUSHIMA, I, OHWADANO, Y, YANO, M

“…A multi-slit camera with an X-ray photodiode array has been developed to measure the electron temperature of a laser produced plasma. The fourth harmonic of…”
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10 W, sub-100 fs fiber amplifier based on a self-referenced 750-MHz Yb:Fiber laser frequency comb by Xu, Bo, Ma, Yuxuan, Ishii, Hirotaka, Meng, Fei, Matsushima, Isao, Zhang, Zhigang, Minoshima, Kaoru

“…We developed a polarization maintained Yb:fiber amplifier based on the self-referenced 750-MHz Yb:fiber laser frequency comb. 10 W average power and sub-100 fs…”
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Low-noise 750-MHz spaced Yb:fiber frequency combs by Ma, Yuxuan, Xu, Bo, Ishii, Hirotaka, Meng, Fei, Nakajima, Yoshiaki, Matsushima, Isao, Schibli, Thomas R, Zhang, Zhigang, Minoshima, Kaoru

“…We demonstrate two fully and tightly phase locked 750 MHz ytterbium (Yb) fiber frequency combs that are independently stabilized to a continuous wave (CW)…”
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KrF laser picosecond pulse source by stimulated scattering processes by Takahashi, Eiichi, Losev, Leonid L, Matsumoto, Yuji, Okuda, Isao, Matsushima, Isao, Kato, Susumu, Nakamura, Hirotaka, Kuwahara, Kenji, Owadano, Yoshiro

“…A new short-pulse KrF laser source was developed by combining stimulated scattering processes, namely, Raman, Brillouin, and four-wave-mixing (FWM). Short…”
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10 kHz 40W Ti:Sapphire regenerative ring amplifier by Matsushima, I., Yashiro, H., Tomie, T.

“…A Ti:sapphire regenerative ring amplifier is developed. The power of 40 W before compression and 26 W after compression are achieved at 10 kHz repetition rate…”
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KrF laser picosecond pulse source by stimulated scattering processes by TAKAHASHI, Eiichi, LOSEV, Leonid L, MATSUMOTO, Yuji, OKUDA, Isao, MATSUSHIMA, Isao, KATO, Susumu, NAKAMURA, Hirotaka, KUWAHARA, Kenji, OWADANO, Yoshiro

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Two-dimensional measurement of laser-induced target movement by face-on interferometry by Takahashi, Eiichi, Matsushima, Isao, Matsumoto, Yuji, Okuda, Isao, Owadano, Yoshiro

“…Initial movement of laser irradiated foil targets has been measured by face-on interferometry with two-dimensional resolution. This interferometric method…”
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KrF laser beam smoothing and accelerated target measurement by Matsushima, Isao, Takahashi, Eiichi, Matsumoto, Yuji, Okuda, Isao, Tomie, Toshihisa, Owadano, Yoshiro

“…The beam smoothing technique for KrF laser drivers and uniformity measurement of accelerated targets are described. As a beam smoothing technique, broad-band…”
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Two-dimensional beam smoothing by broadband random-phase irradiation by Matsushima, Isao, Tomie, Toshihisa, Matsumoto, Yuji, Okuda, Isao, Miura, Eisuke, Yashiro, Hidehiko, Takahashi, Eiichi, Owadano, Yoshiro

“…A new technique for two-dimensional smoothing is proposed to generate smooth laser irradiation profiles on laser fusion targets employing the broad bandwidth…”
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