This article is cited in 8 papers

Interaction of laser radiation with matter. Laser plasma

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

A. S. Kuratov^a, A. V. Brantov^ab, Yu. M. Aliev^b, V. Yu. Bychenkov<sup>ab

a</sup> The Center for Fundamental and Applied Research, All-Russia Research Institute of Automatics
^b P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow

Abstract: 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.

Keywords: terahertz radiation, surface electromagnetic waves, relativistic laser ultrashort pulse.

Received: 09.02.2018

 English version: Quantum Electronics, 2018, 48:7, 653–657

Bibliographic databases:

• 
• 
•