THz Generation via Magnetized Hot Plasma-Laser Interaction

TL;DR

This paper presents a theoretical study on generating terahertz radiation through the interaction of two laser beams with a magnetized hot plasma, highlighting optimal conditions for maximum emission.

Contribution

It introduces a novel mechanism for THz generation using magnetized hot plasma and identifies optimal parameters for maximizing THz radiation.

Findings

Maximum THz radiation occurs at an optimal electron temperature.

Resonant excitation at the upper hybrid frequency is achieved.

THz output depends on magnetic field strength and laser parameters.

Abstract

Terahertz (THz) radiation by beating of two laser beams in a groove density and magnetized hot plasma is discussed theoretically. In this mechanism, the ponderomotive force leads to a nonlinear oscillatory current that resonantly excites THz radiation at the frequency upper hybrid. It is interesting to find that the maximum THz radiation in the various electron temperature, therefore, exited an optimum temperature for the parameters such as beating frequency, transverse distance from lasers beam center and strength of the static magnetic field that THz radiation can be maximized.