Self-modulated wakefield excitation in 40-TW laser-plasma and electron acceleration

Yoneyoshi Kitagawa; Michiaki Mori; Yoshihiro Murakami; Ryosuke Kodama; Hideaki Habara; Kiyonobu Sawai; Kenji Suzuki; Tetsuji Kawasaki; Kazuo A. Tanaka; Kunioki Mima

doi:10.1117/12.375098

11 January 2000 Self-modulated wakefield excitation in 40-TW laser-plasma and electron acceleration

Yoneyoshi Kitagawa, Michiaki Mori, Yoshihiro Murakami, Ryosuke Kodama, Hideaki Habara, Kiyonobu Sawai, Kenji Suzuki, Tetsuji Kawasaki, Kazuo A. Tanaka, Kunioki Mima

Author Affiliations +

Proceedings Volume 3886, High-Power Lasers in Energy Engineering; (2000) https://doi.org/10.1117/12.375098
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

Abstract

Illuminating a 40TW chirped pulse amplified laser on 0.01 critical density hydrogen plasma, we obtain a self-modulated wavefield in the relativistic region, whose amplitude is 24 percent of the average density, or the accelerating field is 160 GV/m. The laser beam is relativistically self-focused, which in turn confined the plasma wave within 0.4 mm diameter over 1 mm axial length. The dephasing distance implies an electron acceleration to 48 MeV, which is consistent with the observation of the averaged energy 35 MeV. Protons of 7 MeV are observed.

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Yoneyoshi Kitagawa, Michiaki Mori, Yoshihiro Murakami, Ryosuke Kodama, Hideaki Habara, Kiyonobu Sawai, Kenji Suzuki, Tetsuji Kawasaki, Kazuo A. Tanaka, and Kunioki Mima "Self-modulated wakefield excitation in 40-TW laser-plasma and electron acceleration", Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); https://doi.org/10.1117/12.375098

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