非线性空间色散介质中光束自聚焦对光束截面偏振分布的变换

5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI:10.1109/LFNM.2003.1246061

A. A. Golubkov, V. A. Makarov, I. Perezhogin

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引用次数: 0

摘要

只提供摘要形式。本文用数值方法研究了具有三次非线性空间色散的非吸收介质中具有椭圆偏振均匀分布的高斯光束在横截面上的自作用。本文分析了光束偏振椭圆的强度、椭圆度和主轴转角与介质的横向坐标和长度的关系。研究表明，各向同性介质的非线性光学响应的非定域性和入射辐射的椭圆偏振对高斯光束的自聚焦阈值条件有强烈的影响，并极大地改变了高斯光束的传播特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Transformation of the polarization distribution in the cross-section of light beam by self-focusing in a medium with spatial dispersion of nonlinearity

Summary form only given. The self-action of a light beam of the Gaussian profile with a distribution of elliptical polarization uniform in the cross-section in a nonabsorbing medium with spatial dispersion of cubic nonlinearity has been investigated numerically. We have analyzed the dependences of the intensity, the degree of ellipticity and the rotation angle of the main axis of a beam polarization ellipse on the transverse coordinates and length of the medium. It has been established that nonlocality of a nonlinear optical response of the isotropic medium and elliptical polarization of incident radiation strongly affect the threshold conditions of self-focusing and substantially change the character of propagation of Gaussian beams.

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5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.

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