Terahertz emission during laser-plasma interaction: effect of electron temperature and collisions

The electron-neutral collisions in the plasma become crucial with regard to the generation of THz radiation when thermal motion of the electrons is considerable. If we look at the mechanism of THz emission, this is only the movement/oscillations of the electrons which is responsible for the excitati...

Full description

Saved in:
Bibliographic Details
Published in:Journal of theoretical and applied physics 2020-12, Vol.14 (4), p.359-365
Main Authors: Malik, Hitendra K., Singh, Divya
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Atomic
Collisions
Condensed Matter Physics
Electron beams
Electron energy
Electrons
Emission
Gaussian beams (optics)
Laser beams
Laser plasma interactions
Medical and Radiation Physics
Molecular
Nanoscale Science and Technology
Optical and Plasma Physics
Physics
Physics and Astronomy
Plasma interactions
Radiation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The electron-neutral collisions in the plasma become crucial with regard to the generation of THz radiation when thermal motion of the electrons is considerable. If we look at the mechanism of THz emission, this is only the movement/oscillations of the electrons which is responsible for the excitation of nonlinear current that generated the THz radiation. The present work aims to disclose the role of thermal motion of the plasma electrons to the resonance condition and the THz emission when two co-propagating super-Gaussian laser beams beat in the plasma. The dynamics of the plasma electrons and subsequent generation of nonlinear current are discussed in greater detail for the emission of THz radiation.
ISSN:2251-7227
2251-7235
DOI:10.1007/s40094-020-00392-3