Search Results - "Kawase, Hiroki"

2.92-µm high-efficiency continuous-wave laser operation of diode-pumped Er:YAP crystal at room temperature by Kawase, Hiroki, Yasuhara, Ryo

“…Mid-infrared lasers have attracted attention for application to the fields of medicine and industry. In this study, we demonstrate continuous-wave laser…”
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Efficient Pr:YAlO3 lasers at 622 nm, 662 nm, and 747 nm pumped by semiconductor laser at 488 nm by Chen, Hengjun, Uehara, Hiyori, Kawase, Hiroki, Yasuhara, Ryo

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Estimation of Kinetics for Batch Cooling Crystallization by Focused‐Beam Reflectance Measurements by Unno, Joi, Kawase, Hiroki, Kaneshige, Reiya, Hirasawa, Izumi

“…Numerical simulation of the seeded batch cooling crystallization process of active pharmaceutical ingredients was performed. Crystal size distribution was…”
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Estimation of the Fast-Ion Anisotropy Effect on the Neutron Source Intensity Measurement and the Experimental Observation by Nishitani, Takeo, Matsuura, Hideaki, Pu, Neng, Ogawa, Kunihiro, Kawase, Hiroki, Isobe, Mitsutaka

“…In the large helical device (LHD) deuterium plasma experiment, the neutron emission rate and the shot-integrated neutron yield are measured with the neutron…”
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Highly efficient Er:YAP laser with 6.9 W of output power at 2920 nm by Yao, Weichao, Uehara, Hiyori, Kawase, Hiroki, Chen, Hengjun, Yasuhara, Ryo

“…We report on the efficient high-power operation of a laser-diode-pumped Er 3+ -doped yttrium aluminum perovskite (Er:YAP) laser in the 3 μ m spectral region at…”
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Dispersion-managed mode-locked Tm:ZBLAN fiber lasers by Kawase, Hiroki, Takano, Junya, Noguchi, Riko, Fuji, Takao

“…We demonstrated a dispersion-managed 2 µm ultrafast laser based on Tm:ZBLAN fiber. By controlling intracavity net dispersion using passive fibers, we observed…”
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Efficient Pr:YAlO 3 lasers at 622 nm, 662 nm, and 747 nm pumped by semiconductor laser at 488 nm by Chen, Hengjun, Uehara, Hiyori, Kawase, Hiroki, Yasuhara, Ryo

“…We report laser operation of Pr:YAlO pumped by a frequency-doubled optically pumped semiconductor laser. Continuous-wave laser oscillations at around 622 nm,…”
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Optical chopper based mechanically Q-switched ∼3 m Er:YAP single-crystal laser by Kawase, Hiroki, Uehara, Hiyori, Yao, Weichao, Chen, Hengjun, Yasuhara, Ryo

“…We developed a compact and low-cost diode-pumped ∼3 m mechanically Q-switched Er:YAP laser with high-power using an optical chopper. At 2.4 W pumping and 7 kHz…”
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Neutron Diagnostics in the Large Helical Device by Isobe, Mitsutaka, Ogawa, Kunihiro, Nishitani, Takeo, Miyake, Hitoshi, Kobuchi, Takashi, Pu, Neng, Kawase, Hoiroki, Takada, Eiji, Tanaka, Tomoyo, Li, Siyuan, Yoshihashi, Sachiko, Uritani, Akira, Jo, Jungmin, Murakami, Sadayoshi, Osakabe, Masaki

“…The deuterium operation of the large helical device (LHD) began in March 7, 2017, after long-term preparation and commissioning of apparatuses necessary for…”
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Optical chopper based mechanically Q-switched ∼3 μm Er:YAP single-crystal laser by Kawase, Hiroki, Uehara, Hiyori, Yao, Weichao, Chen, Hengjun, Yasuhara, Ryo

“…We developed a compact and low-cost diode-pumped ∼3  μ m mechanically Q-switched Er:YAP laser with high-power using an optical chopper. At 2.4 W pumping and…”
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Calibration experiment and the neutronics analyses on the LHD neutron flux monitors for the deuterium plasma experiment by Nishitani, Takeo, Ogawa, Kunihiro, Isobe, Mitsutaka, Kawase, Hiroki, Pu, Neng, Kashchuk, Yuri, Krasilnikov, Vitaly, Jo, Jungmin, Cheon, Munseong, Tanaka, Tomoyo, Yoshihashi, Sachiko, Li, Siyuan, Osakabe, Masaki

“…•Fission chambers of the LHD neutron monitor were calibrated by using 252Cf neutron source.•Results of the calibration was simulated by MCNP6.•Detection…”
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Evaluation of Spatial Resolution of Neutron Profile Monitor in LHD by Kawase, H., Ogawa, K., Nishitani, T., Pu, N., Isobe, M., Group, LHD Experiment

“…The vertical neutron camera (VNC) has been developed to measure neutron emission profile in deuterium plasmas of the large helical device (LHD). The experiment…”
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Passively Q-Switched Er:YAP Single Crystal Laser at 2.92 μm using Graphene Saturable Absorber by Kawase, Hiroki, Uehara, Hiyori, Yasuhara, Ryo

“…High-power mid-IR lasers at a wavelength of around 3 μm are suitable for medical and industrial applications because water has strong absorption in a…”
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