Enhancement of photon number reflected by the relativistic flying mirror

Kando, Masaki; Pirozhkov, A. S.; Kawase, Keigo; Esirkepov, T. Z.; Fukuda, Yuji; Kiriyama, Hiromitsu; Okada, Hajime; Daito, Izuru; Kameshima, Takashi; Hayashi, Yukio; Kotaki, Hideyuki; Mori, Michiaki; Koga, J. K.; Daido, Hiroyuki; Faenov, A. Y.; Pikuz, T.*; Ma, J.*; Chen, L. M.*; Ragozin, E. N.*; Kawachi, Tetsuya; Kato, Yoshiaki ; Tajima, Toshiki; Bulanov, S. V.

Laser light reflection by a relativistically moving electron density modulation (flying mirror) in a wake wave generated in a plasma by a high intense laser pulse is investigated experimentally. A counter-propagating laser pulse is reflected and up shifted in frequency with a multiplication factor of 37-66, corresponding to the extreme ultraviolet wavelength. The demonstrated flying mirror reflectivity (from 310 $^{-6}$ to 210 $^{-5}$ , and from 1.310 $^{-4}$ to 0.610 $^{-3},$ for the photon number and pulse energy, respectively) is close to the theoretical estimate for the parameters of experiment.

Language	:	English
Journal	:	Physical Review Letters
Volume	:	103
Number	:	23
Pages	:	p.235003_1 - 235003_4
Publication Year/Month	:	2009/12
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Paper URL	:	https://doi.org/10.1103/PhysRevLett.103.235003
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Keywords	:	no keyword
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Press Release	:	Enhancement of reflected photons from a flying mirror moving at the speed of light; accelerating applications such as observing and controlling electrons in atoms and realizing ultra-high intense fields 光速で進行する飛翔鏡からの反射光の強度を飛躍的に向上; 原子中の電子の観測・制御や超高強度場の実現へ弾み
Article of JAEA R&D Review	:	Improvement of Reflectivity of Relativistic Flying Mirrors; Demonstration of Efficient Reflection of Laser Light from Plasma Waves[/]
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Registration No. : AA20090039
JAEA Abstracts No. : 38001199
Paper Submission No. : 7852

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