Generation of terahertz radiation during reflection of femtosecond laser pulses from a metal surface

被引：0
|
作者：
V. A. Mironov
I. V. Oladyshkin
E. V. Suvorov
D. A. Fadeev
机构：
[1] Russian Academy of Sciences,Institute of Applied Physics
[2] Nizhni Novgorod State University,undefined
来源：
Journal of Experimental and Theoretical Physics | 2014年 / 119卷
关键词：
Laser Pulse; Surface Current; Optical Pulse; Femtosecond Laser Pulse; Optical Field;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The features of terahertz radiation generated upon oblique incidence of a femtosecond laser pulse on a metal surface are investigated theoretically. We propose a Cherenkov-type generation mechanism associated with excitation of low-frequency surface currents by a p-polarized optical field. The nonlinear surface currents and corresponding electrodynamic characteristics of low-frequency radiation are calculated analytically and by numerical simulation using the hydrodynamic model. The features of Cherenkov generation of terahertz radiation are analyzed, and techniques are proposed for increasing efficiency.
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页码：179 / 195
页数：16
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