Influence of Electrostatic and Magnetic Fields on Hot Electron Emission in Ultra-Intense Laser Matter Interactions

Toshinori YABUUCHI; Yasuhiko SENTOKU; Takeshi MATSUOKA; Hideaki HABARA; Ken ADUMI; Zenglin CHEN; Ryosuke KODAMA; Kiminori KONDO; Anle LEI; Kunioki MIMA; Motonobu TAMPO; Tsuyoshi TANIMOTO; Kazuo A. TANAKA

doi:10.1585/pfr.2.015

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Influence of Electrostatic and Magnetic Fields on Hot Electron Emission in Ultra-Intense Laser Matter Interactions

Toshinori YABUUCHI, Yasuhiko SENTOKU, Takeshi MATSUOKA, Hideaki HABARA, Ken ADUMI, Zenglin CHEN, Ryosuke KODAMA, Kiminori KONDO, Anle LEI, Kunioki MIMA, Motonobu TAMPO, Tsuyoshi TANIMOTO, Kazuo A. TANAKA

Author information

Toshinori YABUUCHI
Graduate School of Engineering, Osaka University
Institute of Laser Engineering, Osaka University
Yasuhiko SENTOKU
Department of Physics, University of Nevada
Takeshi MATSUOKA
Institute of Laser Engineering, Osaka University
Hideaki HABARA
Graduate School of Engineering, Osaka University
Institute of Laser Engineering, Osaka University
Ken ADUMI
Graduate School of Engineering, Osaka University
Institute of Laser Engineering, Osaka University
Zenglin CHEN
Institute of Laser Engineering, Osaka University
Ryosuke KODAMA
Graduate School of Engineering, Osaka University
Institute of Laser Engineering, Osaka University
Kiminori KONDO
Graduate School of Engineering, Osaka University
Institute of Laser Engineering, Osaka University
Anle LEI
Institute of Laser Engineering, Osaka University
Kunioki MIMA
Institute of Laser Engineering, Osaka University
Motonobu TAMPO
Institute of Laser Engineering, Osaka University
Tsuyoshi TANIMOTO
Graduate School of Engineering, Osaka University
Institute of Laser Engineering, Osaka University
Kazuo A. TANAKA
Graduate School of Engineering, Osaka University
Institute of Laser Engineering, Osaka University

Keywords: ultra-intense laser, hot electron, electrostatic potential, retarded potential, Alfvén current

JOURNAL FREE ACCESS

2007 Volume 2 Pages 015

DOI https://doi.org/10.1585/pfr.2.015

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Abstract

We studied the influence of electrostatic and magnetic fields at the rear surface of solid targets on the hot electron emission generated by ultra-intense laser pulses. The number of emitted electrons increases in experiments when a pre-plasma is created on the target rear surface. The formation of the electrostatic potential is clearly retarded in particle-in-cell simulations resulting in the elongation of time window for hot electron emission. The increase in the number of electrons is consistent with the Alfvén current within the elongated time window.

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