Indian Journal of Pure and Applied Physics

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Effect of Asymmetry in the Modulation Parameters on Self-Focusing of Asymmetric Finite Airy-Gaussian Laser Beam in Collisionless Plasma


Affiliations
1 Department of Physics, Devchand College, Arjunnagar, Maharashtra-591 237, India
2 Department of Physics, DKASC College, Ichalkaranji, Maharashtra-416 115, India
3 Department of Physics, Shivaji University, Kolhapur, Maharashtra-416 004, India

The self-focusing/defocusing of asymmetric finite Airy-Gaussian (AiG) laser beam has been investigated by employing standard Wentzel–Kramers–Brillouin (WKB) and paraxial-ray approximations in a nonrelativistic regime for underdense plasma. The second-order non-linear coupled differential equations have been solved numerically by using the fourth-order Range-Kutta method. The effect of asymmetry in the modulation parameters on the self-focusing/defocusing of the asymmetric finite AiG laser beam in collisionless plasma has been studied. It is observed that the self-focusing/ defocusing of asymmetric finite AiG laser beam is strongly connected with the initial values of the laser and plasma parameters such as modulation parameters and plasma frequency.
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  • Effect of Asymmetry in the Modulation Parameters on Self-Focusing of Asymmetric Finite Airy-Gaussian Laser Beam in Collisionless Plasma

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Authors

Sandip D. Patil
Department of Physics, Devchand College, Arjunnagar, Maharashtra-591 237, India
Purva P. Nikam
Department of Physics, Devchand College, Arjunnagar, Maharashtra-591 237, India
Vinayak S Pawar
Department of Physics, DKASC College, Ichalkaranji, Maharashtra-416 115, India
Prasad T Takale
Department of Physics, Shivaji University, Kolhapur, Maharashtra-416 004, India
Kalyani Y Khandale
Department of Physics, Shivaji University, Kolhapur, Maharashtra-416 004, India
Sanyogita S Patil
Department of Physics, Devchand College, Arjunnagar, Maharashtra-591 237, India
Manisha B Mane
Department of Physics, Devchand College, Arjunnagar, Maharashtra-591 237, India
Mansing V Takale
Department of Physics, Shivaji University, Kolhapur, Maharashtra-416 004, India

Abstract


The self-focusing/defocusing of asymmetric finite Airy-Gaussian (AiG) laser beam has been investigated by employing standard Wentzel–Kramers–Brillouin (WKB) and paraxial-ray approximations in a nonrelativistic regime for underdense plasma. The second-order non-linear coupled differential equations have been solved numerically by using the fourth-order Range-Kutta method. The effect of asymmetry in the modulation parameters on the self-focusing/defocusing of the asymmetric finite AiG laser beam in collisionless plasma has been studied. It is observed that the self-focusing/ defocusing of asymmetric finite AiG laser beam is strongly connected with the initial values of the laser and plasma parameters such as modulation parameters and plasma frequency.