Hot electrons in the interaction of femtosecond laser pulses with foil targets at a moderate laser intensity

被引：38

作者：

Li, Y.T. ^{[1
]}

Zhang, J. ^{[1
]}

Chen, L.M. ^{[1
]}

Mu, Y.F. ^{[1
]}

Liang, T.J. ^{[1
]}

Wei, Z.Y. ^{[1
]}

Dong, Q.L. ^{[1
]}

Chen, Z.L. ^{[1
]}

Teng, H. ^{[1
]}

Chun-Yu, S.T. ^{[1
]}

Jiang, W.M. ^{[1
]}

Zheng, Z.J. ^{[1
]}

Tang, X.W. ^{[1
]}

机构：

[1] Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China

来源：

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics | 2001年 / 64卷 / 4 II期

关键词：

Aluminum foil - Beam plasma interactions - Computer simulation - Electron beams - Electron emission - Energy absorption - Laser produced plasmas - Monte Carlo methods - Resonance - Spectrum analysis;

D O I：

10.1103/PhysRevE.64.046407

中图分类号：

学科分类号：

摘要：

The angular distributions and energy spectrum of hot electrons produced in the interaction of femtosecond laser pulses with aluminum plasmas were investigated at a moderate intensity. Experiments were carried out with a Ti:sapphire laser system and the target was moved 0.5 mm/second to allow interaction of laser pulses with a fresh target surface for every shot. A collimated jet of hot electrons was observed in the target normal direction. The hot temperatures obtained from electron spectrum and absorption measurements implied that resonance absorption was partially responsible for the generation of hot electrons.

引用

页码：464071 / 464076