Self-Focusing of Asymmetric Finite Airy-Gaussian Laser Beams in Plasma with Exponential Density Ramp

被引：0

作者：

Nikam, P. P. ^{[1
]}

Pawar, V. S. ^{[2
]}

Patil, P. P. ^{[3
]}

Takale, M. V. ^{[4
]}

Patil, S. D. ^{[3
]}

机构：

[1] Smt Kasturbai Walchand Coll Arts & Sci, Dept Phys, Sangli, Maharashtra, India

[2] DKASC, Dept Phys, Ichalkaranji, Maharashtra, India

[3] Devchand Coll, Dept Phys, Arjunnagar, Maharashtra, India

[4] Shivaji Univ, Dept Phys, Kolhapur, Maharashtra, India

来源：

JOURNAL OF APPLIED SPECTROSCOPY | 2025年

关键词：

finite Airy-Gaussian beam; exponential density; self-focusing; plasma; COLLISIONLESS PLASMA; TEMPERATURE; PROPAGATION;

D O I：

10.1007/s10812-025-01898-x

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Based on paraxial and Wentzel-Kramers-Brillouin (WKB) approximations, we investigated density transitionbased self-focusing of asymmetric finite Airy-Gaussian (AiG) beams in plasma. The relativistic nonlinearity in the dielectric constant of plasma is considered. The electric field distribution of asymmetric finite AiG beams is expressed in terms of beam-width parameters f1 and f2 with respective modulation parameters a and b in transverse dimensions of the beam. The coupled differential equations governing the behavior of f1 and f2 with dimensionless propagation distance xi are established from the parabolic equation approach. The effect of the exponential density ramp profile on the self-focusing of asymmetric finite AiG beams is presented. The sensitiveness of asymmetry in a and b parameters of finite AiG beam and exponential density ramp of plasma is specifically highlighted.

引用

页码：202 / 209

页数：8

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