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Ponderomotive self-focusing of linearly polarized laser beam in magnetized quantum plasma

Published online by Cambridge University Press:  08 December 2016

N. S. Rathore  and
P. Kumar
N. S. Rathore
Affiliation:
Department of Physics, University of Lucknow, Lucknow 226007, India
P. Kumar*
Affiliation:
Department of Physics, University of Lucknow, Lucknow 226007, India
*
Address correspondence and reprint requests to: P. Kumar, Department of Physics, University of Lucknow, Lucknow 226007, India. E-mail: [email protected]
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Abstract

Ponderomotive non-linearities arising by propagation of a linearly polarized laser beam through high-density quantum plasma are studied. The intense laser beam sets the plasma electrons in quiver motion and consequently ponderomotive non-linearity sets in leading to electron density perturbation inside the plasma. The interaction formalism has been built using the quantum hydrodynamic model. Laser beam traversing through high-density quantum plasma acquires an additional focusing tendency due to the perturbation induced by ponderomotive force in the plasma density. The ponderomotive force causes the beam to focus and the quantum effects contribute in focusing. The transverse magnetization of quantum plasma enhances the self-focusing and increase in magnetic field limits the spot size.

Keywords

Ponderomotive forceQuantum plasmaSelf-focusingSpot size
Type
Research Article
Information
Laser and Particle Beams , Volume 34 , Issue 4 , December 2016 , pp. 764 - 771
Copyright
Copyright © Cambridge University Press 2016 

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