Search Results - "Sei, N"

Operation of higher harmonic oscillations in free-electron lasers by Sei, N, Ogawa, H, Yamada, K

“…We report for the first time the experimental achievement of a seventh-harmonic free-electron laser (FEL) oscillation. The measured FEL gains and average FEL…”
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Asymmetric two-bunch operation of free-electron laser and generation of inverse Compton photons by Ogawa, H., Sei, N., Yamada, K.

“…Yield enhancement of high-energy photon pulses, which were generated via inverse Compton scattering of free-electron laser (FEL) pulses with electron pulses in…”
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Development of a coherent THz radiation source based on the ultra-short electron beam and its applications by Kuroda, R., Yasumoto, M., Toyokawa, H., Sei, N., Koike, M., Yamada, K.

“…At the National Institute of Advanced Industrial Science and Technology (AIST), a coherent terahertz (THz) radiation source has been developed based on an…”
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Recent progress in generation and application of AIST laser-Compton gamma-ray beam by Toyokawa, H., Goko, S., Hohara, S., Kaihori, T., Kaneko, F., Kuroda, R., Oshima, N., Tanaka, M., Koike, M., Kinomura, A., Ogawa, H., Sei, N., Suzuki, R., Ohdaira, T., Yamada, K., Ohgaki, H.

“…Quasi-monochromatic gamma-ray beam produced with the laser-Compton scattering (LCS) in 1–40 MeV has been used for various scientific studies and industrial…”
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Measurement of coherent terahertz radiation for time-domain spectroscopy and imaging by Kuroda, R., Yasumoto, M., Sei, N., Toyokawa, H., Ikeura-Sekiguchi, H., Ogawa, H., Koike, M., Yamada, K.

“…A high-power terahertz (THz) source for THz time-domain spectroscopy (THz-TDS) and THz imaging has been developed based on an S-band compact electron linac at…”
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Development of Cs2Te photocathode rf gun system for compact THz SASE-FEL by Kuroda, R., Ogawa, H., Sei, N., Toyokawa, H., Yagi-Watanabe, K., Yasumoto, M., Koike, M., Yamada, K., Yanagida, T., Nakajyo, T., Sakai, F.

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Generation of 0.1 THz coherent synchrotron radiation with compact S-band linac at AIST by KURODA, R, SEI, N, YASUMOTO, M, TOYOKAWA, H, OGAWA, H, KOIKE, M, YAMADA, K

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Near-infrared storage ring free electron laser experiments at AIST by Sei, N., Yamada, K., Ogawa, H., Yasumoto, M.

“…The development of free electron lasers (FELs) with a compact storage ring NIJI-IV in the near- and middle-infrared regions has been advanced at the National…”
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Development of high power THz-TDS system based on S-band compact electron linac by Kuroda, R., Sei, N., Oka, T., Yasumoto, M., Toyokawa, H., Ogawa, H., Koike, M., Yamada, K., Sakai, F.

“…The high power terahertz (THz)-time domain spectroscopy (TDS) system has been designed based on S-band compact electron linac at Advanced Industrial Science…”
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Photo-acoustic spectroscopy of polymer with infrared free electron laser by Yasumoto, M., Ogawa, H., Sei, N., Yamada, K.

“… We have been proposing a new photo acoustic spectroscopy (PAS) method with an infrared free electron laser (IR-FEL). The IR-FEL is a continuous tunable laser…”
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Simulation for spectral evolution of a storage ring free electron laser in a macropulse zone by Sei, N, Yamada, K, Yasumoto, M, Ogawa, H, Mikado, T

“…A computer simulation for evolution of a storage ring free electron laser (SRFEL) micropulse in a macropulse zone has been performed. The one-dimension…”
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Simulation study on the coherent harmonic generation at the NIJI-IV FEL with a hole-coupled resonator by Ogawa, H, Yamada, K, Sei, N, Yasumoto, M, Mikado, T

“…Generation of the VUV radiation has been numerically studied based on coherent harmonic generation (CHG) scheme at NIJI-IV with a hole-coupled resonator. The…”
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YAG laser face joining technology of A6061 aluminium and SPCC plates by NISHIMOTO, K, MARUO, T, OUMI, M, SEI, N, FUJII, H

“…Laser and pressure roll combination joining tests on SPCC-A6061 plates were carried out by changing the roll pressure. Adhesive strengths on SPCC-A6061 were…”
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Dynamic behavior of the NIJI-IV storage ring free electron laser by Yamada, K., Sei, N., Yasumoto, M., Ogawa, H., Mikado, T., Ohgaki, H.

“…Temporal and spectral characteristics of the NIJI-IV FEL were investigated around 300 nm using a dual-sweep streak camera and a monochromator. It was found…”
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Lasing below 200 in the NIJI-IV compact storage-ring-based free electron laser by Yamada, K, Sei, N, Ogawa, H, Yasumoto, M, Mikado, T

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Study of expected performance of the hard X-ray beam for the FEL-X project by Sei, N., Yamada, K., Ohgaki, H., Mikado, T., Yasumoto, M., Ogawa, H.

“…We advance the FEL-X project and plan to install a new optical klystron for the infrared FELs within next year. The expected FEL gain at a wavelength of 10.6…”
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Characteristics of the NIJI-IV UV-VUV FEL system—toward lasing down to 150 nm using a compact storage ring by Yamada, K, Sei, N, Ohgaki, H, Mikado, T, Yamazaki, T

“…Improvement of the NIJI-IV free electron laser (FEL) system is in progress. Recent gain enhancement made the lasing more stable in the wavelength range from…”
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Lasing Towards the VUV in the NIJI-IV FEL by Yamada, K, Sei, N, Ohgaki, H, Mikado, T, Sugiyama, S, Yamazaki, T

“…The lasing wavelength in the NIJI-IV free electron laser (FEL) reached 212 nm in the deep ultraviolet (UV) range. Adoption of Al 2O 3/SiO 2 multilayer mirrors…”
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Improvement of the beam quality by chromaticity correction for wavelength shortening in the NIJI-IV FEL by Sei, N., Yamada, K., Ohgaki, H., Litvinenko, V.N., Mikado, T., Yamazaki, T.

“…Electron-beam qualities improved by chromaticity correction in the storage ring NIJI-IV were investigated at the beam energy of 309 MeV…”
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Characteristics of the NIJI-IV UV-VUV FEL system—toward lasing down to 150nm using a compact storage ring by Yamada, K, Sei, N, Ohgaki, H, Mikado, T, Yamazaki, T

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