Laser-induced thermoelectric current as a source of generation of THz surface electromagnetic waves

被引：9
|
作者：
Kuratov, A. S. [1 ]
Brantov, A. V. [1 ,2 ]
Aliev, Yu. M. [2 ]
Bychenkov, V. Yu. [1 ,2 ]
机构：
[1] SC Rosatom Co, NL Dukhov All Russia Res Inst Automat, Ctr Fundamental & Appl Res, Sushchevskaya Ul 22, Moscow 127005, Russia
[2] Russian Acad Sci, PN Lebedev Phys Inst, Leninsky Prosp 53, Moscow 119991, Russia
来源：
QUANTUM ELECTRONICS | 2018年 / 48卷 / 07期
基金：
俄罗斯基础研究基金会;
关键词：
terahertz radiation; surface electromagnetic waves; relativistic laser ultrashort pulse; MAGNETIC-FIELDS; PLASMA; ABSORPTION;
D O I：
10.1070/QEL16631
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The theory of excitation of a surface electromagnetic wave (typically of a terahertz frequency range) is developed, the source of which is the thermoelectric current that arises when a charged inhomogeneous layer of hot electrons of submicron thickness is generated by an intense laser ultrashort pulse at the surface of a solid target under conditions of crossed electron density and temperature gradients. The efficiency of such a generation mechanism is compared with the efficiency of generation of transient surface radiation caused by a bunch of high-energy electrons leaving the target.
引用
收藏
页码：653 / 657
页数：5
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