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Mori, Michiaki; Kando, Masaki; Kotaki, Hideyuki; Hayashi, Yukio; Bulanov, S. V.; Koga, J. K.; Kondo, Kiminori; Pirozhkov, A. S.; Nishimura, Hiroaki*; Nagashima, Keisuke
Journal of the Physical Society of Japan, 80(10), p.105001_1 - 105001_2, 2011/09
Times Cited Count：4 Percentile：33.73(Physics, Multidisciplinary)The effects of plasma density and laser power on the energetic electron bunch generation in an Argon (high-Z) gas-jet target in the self modulated laser wakefield acceleration regime were investigated. A vector potential threshold for electron injection was obtained 
2.8 through a simple analytical model include two-dimensional laser pulse compression by relativistic self-focusing, and it is similar to that after accounting for three-dimensional laser pulse compression in the standard Laser Wakefield acceleration regime.
Tampo, Motonobu; Awano, Shinya*; Bolton, P.; Kondo, Kiminori; Mima, Kunioki*; Mori, Yoshitaka*; Nakamura, Hirotaka*; Nakatsutsumi, Motoaki*; Stephens, R. B.*; Tanaka, Kazuo*; et al.
Physics of Plasmas, 17(7), p.073110_1 - 073110_5, 2010/07
Times Cited Count：12 Percentile：42.46(Physics, Fluids & Plasmas)Sasaki, Akira; Sunahara, Atsushi*; Nishihara, Katsunobu*; Nishikawa, Takeshi*; Koike, Fumihiro*; Tanuma, Hajime*
Reza Kenkyu, 36(Suppl.), p.1132 - 1135, 2008/11
no abstracts in English
Sasaki, Akira; Nishihara, Katsunobu*; Murata, Masaki*
Purazuma, Kaku Yugo Gakkai-Shi, 84(8), p.546 - 554, 2008/08
no abstracts in English
Sasaki, Akira; Sunahara, Atsushi*; Nishihara, Katsunobu*; Nishikawa, Takeshi*; Koike, Fumihiro*; Tanuma, Hajime*
Journal of Physics; Conference Series, 112, p.042062_1 - 042062_4, 2008/00
Times Cited Count：5 Percentile：84.16(Physics, Fluids & Plasmas)no abstracts in English
Nishihara, Katsunobu*; Sunahara, Atsushi*; Sasaki, Akira; Nunami, Masanori*; Tanuma, Hajime*; Fujioka, Shinsuke*; Shimada, Yoshinori*; Fujima, Kazumi*; Furukawa, Hiroyuki*; Kato, Takako*; et al.
Physics of Plasmas, 15(5), p.056708_1 - 056708_11, 2008/00
Times Cited Count：122 Percentile：97.46(Physics, Fluids & Plasmas)Hatae, Takaki; Howard, J.*; Hirano, Yoichi*; Naito, Osamu; Nakatsuka, Masahiro*; Yoshida, Hidetsugu*
Plasma and Fusion Research (Internet), 2, p.S1026_1 - S1026_5, 2007/11
A high-throughput polarization interferometer is being developed to demonstrate for the first time the utility of Fourier transform spectroscopy for Thomson scattering diagnostics of high temperature plasma. Target 
and 
ranges for the prototype polarization interferometer are 
1 keV and 
5
10
m
, respectively. This paper describes the design of the polarization interferometer and the results of initial tests.
Sunahara, Atsushi*; Sasaki, Akira; Tanuma, Hajime*; Nishihara, Katsunobu*; Nishikawa, Takeshi*; Koike, Fumihiro*; Fujioka, Shinsuke*; Aota, Tatsuya*; Yamaura, Michiteru*; Shimada, Yoshinori*; et al.
Purazuma, Kaku Yugo Gakkai-Shi, 83(11), p.920 - 926, 2007/11
We study the EUV emission from laser produced Sn plasmas using the 1D and 2D radiation hydrodynamics simulation, for the development of EUV source for the next generation semiconductor lithography. The opacity and emissivity of the plasma used in the simulation are calculated by a detailed atomic model, with the accurate wavelength of emission lines obtained from the detailed spectroscopic measurements. Calculation is shown to reproduce the experimental spectrum and conversion efficiency reasonably, including the effect of photo pumping which modifies the EUV emission spectrum in the case with a long scale length of the plasmas.
Tanuma, Hajime*; Sasaki, Akira
Purazuma, Kaku Yugo Gakkai-Shi, 83(8), p.679 - 683, 2007/08
no abstracts in English
Sasaki, Akira; Sunahara, Atsushi*; Nishihara, Katsunobu*; Nishikawa, Takeshi*; Fujima, Kazumi*; Kagawa, Takashi*; Koike, Fumihiro*; Tanuma, Hajime*
High Energy Density Physics, 3(1-2), p.250 - 255, 2007/05
Times Cited Count：17 Percentile：49.63(Physics, Fluids & Plasmas)no abstracts in English
Hatae, Takaki; Nakatsuka, Masahiro*; Yoshida, Hidetsugu*; Ebisawa, Katsuyuki*; Kusama, Yoshinori; Sato, Kazuyoshi; Katsunuma, Atsushi*; Kubomura, Hiroyuki*; Shinobu, Katsuya*
Fusion Science and Technology, 51(2T), p.58 - 61, 2007/02
Times Cited Count：6 Percentile：42.5(Nuclear Science & Technology)no abstracts in English
Hatae, Takaki; Naito, Osamu; Kitamura, Shigeru; Sakuma, Takeshi*; Hamano, Takashi*; Nakatsuka, Masahiro*; Yoshida, Hidetsugu*
Journal of the Korean Physical Society, 49, p.S160 - S164, 2006/12
no abstracts in English
Hatae, Takaki; Naito, Osamu; Nakatsuka, Masahiro*; Yoshida, Hidetsugu*
Review of Scientific Instruments, 77(10), p.10E508_1 - 10E508_6, 2006/10
Times Cited Count：30 Percentile：76.98(Instruments & Instrumentation)no abstracts in English
Sagisaka, Akito; Utsumi, Takayuki*; Daido, Hiroyuki; Ogura, Koichi; Orimo, Satoshi; Hayashi, Yukio; Takai, Mamiko; Mori, Michiaki; Yogo, Akifumi; Kado, Masataka; et al.
Reza Enerugigaku Kenkyu Senta Heisei-17-Nendo Kyodo Kenkyu Seika Hokokusho (Heisei-17-Nen 4-Gatsu Heisei-18-Nen 3-Gatsu), p.61 - 62, 2006/07
no abstracts in English
Okuno, Tomoharu*; Fujioka, Shinsuke*; Nishimura, Hiroaki*; Tao, Y.*; Nagai, Keiji*; Gu, Q.*; Ueda, Nobuyoshi*; Ando, Tsuyoshi*; Nishihara, Katsunobu*; Norimatsu, Takayoshi*; et al.
Applied Physics Letters, 88(16), p.161501_1 - 161501_3, 2006/04
Times Cited Count：64 Percentile：87.58(Physics, Applied)no abstracts in English
Sasaki, Akira; Nishihara, Katsunobu*; Sunahara, Atsushi*; Nishikawa, Takeshi*; Koike, Fumihiro*; Kagawa, Takashi*; Tanuma, Hajime*
Proceedings of SPIE's International Symposium on Microlithography, Vol.6151, p.61513W_1 - 61513W_8, 2006/03
The atomic processes in the Xe and Sn plasmas are investigated. The wavelength of atomic transitions is shown to have a critical effect in reproducing experiments. The wavelengths of resonance lines in our model are improved through detailed comparison with charge specific spectroscopic measurement. Distribution of satellite lines in the presence of the effect of the configuration interaction (CI) is investigated. The spectral profile of Xe and Sn emission, with determines fraction of usable EUV power, is discussed with respect to its dependence on the plasma temperature, density as well as the optical depth.
Kagawa, Takashi*; Nishihara, Katsunobu*; Sasaki, Akira; Koike, Fumihiro*
Journal of Plasma and Fusion Research SERIES, Vol.7, p.245 - 248, 2006/00
no abstracts in English
Fujioka, Shinsuke*; Nishimura, Hiroaki*; Nishihara, Katsunobu*; Sasaki, Akira; Sunahara, Atsushi*; Okuno, Tomoharu*; Ueda, Nobuyoshi*; Ando, Tsuyoshi*; Tao, Y.*; Shimada, Yoshinori*; et al.
Physical Review Letters, 95(23), p.235004_1 - 235004_4, 2005/12
Times Cited Count：147 Percentile：95.58(Physics, Multidisciplinary)no abstracts in English
Hatae, Takaki; Kondoh, Takashi; Naito, Osamu; Nakatsuka, Masahiro*; Yoshida, Hidetsugu*
Proceedings of 12th International Symposium on Laser-Aided Plasma Diagnostics (LAPD-12) (CD-ROM), 6 Pages, 2005/09
no abstracts in English
Shimada, Yoshinori*; Nishimura, Hiroaki*; Nakai, Mitsuo*; Hashimoto, Kazuhisa*; Yamaura, Michiteru*; Tao, Y.*; Shigemori, Keisuke*; Okuno, Tomoharu*; Nishihara, Katsunobu*; Kawamura, Toru*; et al.
Applied Physics Letters, 86(5), p.051501_1 - 051501_3, 2005/01
Times Cited Count：113 Percentile：94.26(Physics, Applied)no abstracts in English
