Energetic protons from a few-micron metallic foil evaporated by an intense laser pulse

With detailed experimental studies and hydrodynamics and particle-in-cell simulations we investigate the role of the prepulse in laser proton acceleration. The prepulse or pedestal (amplified spontaneous emission) can completely evaporate the irradiated region of a sufficiently thin foil; therefore,...

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Veröffentlicht in:Physical review letters 2003-11, Vol.91 (21), p.215001-215001, Article 215001
Hauptverfasser: Matsukado, K, Esirkepov, T, Kinoshita, K, Daido, H, Utsumi, T, Li, Z, Fukumi, A, Hayashi, Y, Orimo, S, Nishiuchi, M, Bulanov, S V, Tajima, T, Noda, A, Iwashita, Y, Shirai, T, Takeuchi, T, Nakamura, S, Yamazaki, A, Ikegami, M, Mihara, T, Morita, A, Uesaka, M, Yoshii, K, Watanabe, T, Hosokai, T, Zhidkov, A, Ogata, A, Wada, Y, Kubota, T
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Sprache:eng
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Zusammenfassung:With detailed experimental studies and hydrodynamics and particle-in-cell simulations we investigate the role of the prepulse in laser proton acceleration. The prepulse or pedestal (amplified spontaneous emission) can completely evaporate the irradiated region of a sufficiently thin foil; therefore, the main part of the laser pulse interacts with an underdense plasma. The multiparametric particle-in-cell simulations demonstrate that the main pulse generates the quasistatic magnetic field, which in its turn produces the long-lived charge separation electrostatic field, accelerating the ions.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.91.215001