Pair and γ-photon production from a thin foil confined by two laser pulses -: art. no. 016405

被引:87
作者
Shen, BF
Meyer-ter-Vehn, J
机构
[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany
[2] Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
来源
PHYSICAL REVIEW E | 2002年 / 65卷 / 01期
关键词
D O I
10.1103/PhysRevE.65.016405
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Electron-positron and gamma-photon production by high-intensity laser pulses is investigated for a special target geometry, in which two pulses irradiate a very thin foil 10-100 mn < skin depth) with same intensity from opposite sides. A stationary solution is derived describing foil compression between the two pulses. Circular polarization is chosen such that all electrons and positions rotate in the plane of the foil. We discuss the laser and target parameters required in order to optimize the gamma photon and pair production rate. We find a gamma-photon intensity of 7 x 10(27)/sr s and a positron density of 5 x 10(22)/cm(3) when using two 330 fs, 7 x 10(21) W/cm(2) laser pulses.
引用
收藏
页码:1 / 016405
页数:6
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