High-intensity laser guiding in a plasma: amplitude modulation effects

We investigate the guiding of a high-intensity laser beam in a plasma incorporating the laser amplitude modulation effects. A laser filament with modulated amplitude propagates through a plasma. The laser filament perturbs the plasma density, deriving the plasma nonlinearity. Plasma equilibrium dens...

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Bibliographic Details
Published in:Journal of optics (New Delhi) 2024-04, Vol.53 (2), p.1210-1214
Main Authors: Meena, Raju Ram, Panwar, Santosh, Yadav, Ritesh, Vijay, Anuj
Format: Article
Language:English
Subjects:
Amplitude modulation
High power lasers
Information transfer
Laser beams
Lasers
Nonlinearity
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Plasma density
Plasma equilibrium
Relativistic effects
Research Article
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Summary:We investigate the guiding of a high-intensity laser beam in a plasma incorporating the laser amplitude modulation effects. A laser filament with modulated amplitude propagates through a plasma. The laser filament perturbs the plasma density, deriving the plasma nonlinearity. Plasma equilibrium density is modified due to ohmic heating of electrons, collisions, and relativistic effects during the interaction of the laser beam with plasmas. The amplitude modulation of laser filament affects the distribution of plasma density, and thus, the plasma nonlinearity is modified significantly. The results of this work show a significant improvement in laser guiding due to amplitude modulation effects. For current laser-plasma parameters, about 25% laser intensity enhancement is seen through this study. This may be applicable for information transfer during laser interaction with a plasma.
ISSN:0972-8821
0974-6900
DOI:10.1007/s12596-023-01261-3