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On the exploration of graphical and analytical investigation of effect of critical beam power on self-focusing of cosh-Gaussian laser beams in collisionless magnetized plasma

Published online by Cambridge University Press:  03 August 2018

T. U. Urunkar ,
S. D. Patil ,
A. T. Valkunde ,
B. D. Vhanmore ,
K. M. Gavade  and
M. V. Takale
T. U. Urunkar
Affiliation:
Department of Physics, Shivaji University, Kolhapur 416 004, India
S. D. Patil
Affiliation:
Department of Physics, Devchand College, Arjunnagar, Kolhapur 591 237, India
A. T. Valkunde
Affiliation:
Department of Physics, Shivaji University, Kolhapur 416 004, India
B. D. Vhanmore
Affiliation:
Department of Physics, Shivaji University, Kolhapur 416 004, India
K. M. Gavade
Affiliation:
Department of Physics, Shivaji University, Kolhapur 416 004, India
M. V. Takale*
Affiliation:
Department of Physics, Shivaji University, Kolhapur 416 004, India
*
Author for correspondence: M. V. Takale, Department of Physics, Shivaji University, Kolhapur 416 004, India. E-mail: [email protected]
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Abstract

The paper gives graphical and analytical investigation of the effect of critical beam power on self-focusing of cosh-Gaussian laser beams in collisionless magnetized plasma under ponderomotive non-linearity. The standard Akhmanov's parabolic equation approach under Wentzel–Kramers–Brillouin (WKB) and paraxial approximations is employed to investigate the propagation of cosh-Gaussian laser beams in collisionless magnetized plasma. Especially, the concept of numerical intervals and turning points of critical beam power has evolved through graphical analysis of beam-width parameter differential equation of cosh-Gaussian laser beams. The results are discussed in the light of numerical intervals and turning points.

Keywords

Cosh-Gaussian beamcritical beam powerdecentered parametermagnetized plasmaself-focusing
Type
Research Article
Information
Laser and Particle Beams , Volume 36 , Issue 2 , June 2018 , pp. 254 - 260
Copyright
Copyright © Cambridge University Press 2018 

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