Publication Details:
Լույս է տեսնում 1966 թվականից՝ տարին 4 անգամ։
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ՀՀ ԳԱԱ Տեղեկագիր: Ֆիզիկա = Proceedings of the NAS RA: Physics
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Title:
Nonlinear Dynamics of Q-Gaussian Laser Beam in Collisional Plasma: Effect of Linear Absorption
Creator:
Tripathi, D. ; Kaur, S. ; Vijay, A. ; Walia, K.
Contributor(s):
Պատ․ խմբ․՝ Գ․ Մ․ Ղարիբյան (1966-1992) ; Գլխ․ խմբ․՝ Վ․ Մ․ Հարությունյան (1993-2021) ; Կ․ Մ․ Ղամբարյան (2022-)
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Abstract:
The present research investigates nonlinear dynamics of q-Gaussian laser beam in Collisional Plasma considering the influence of linear absorption. In Collisional plasma, redistribution of carriers occurs as a result of non-uniform heating thereby creating density gradients inside plasma leading to beam’s self-focusing. The Paraxial ray approximation is used for obtaining the nonlinear differential equation for spot size of laser beam. The numerical solution of this differential equation is obtained by wellknown Runge-Kutta 4th order method to explore the behavior of beam waist with normalized propagation distance. Effect of change in laser-plasma parameters such as beam intensity, plasma density, beam radius, absorption coefficient and q-values on beam waist of laser beam is also analyzed.