Laser-induced variations of light polarization of tightly focused laser beams

Vitali E. Gruzdev; Mikhail N. Libenson

doi:10.1117/12.376988

1 February 2000 Laser-induced variations of light polarization of tightly focused laser beams

Vitali E. Gruzdev, Mikhail N. Libenson

Proceedings Volume 3885, High-Power Laser Ablation II; (2000) https://doi.org/10.1117/12.376988
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

Abstract

There are presented results of theoretical investigation of self-depolarization effect resulting in variation of space distribution of polarization-ellipse parameters of high- power focused laser beam. In particular, both linear and circular initial polarizations are shown to change and turn into elliptic polarization with inhomogeneous distribution of polarization-ellipse parameters in focal area. Detailed results and calculations are presented for particular case of Gaussian beams of low order (TE₀₀, TE₀₁, TE₁₀ and TE₁₁). Bearing in mind obtained results, we discuss specific symmetry structure of self-depolarization effect allowing experimental checking of described phenomenon. Possibility of observing polarization dependence for damage and self-focusing thresholds in transparent materials is also considered.

Citation Download Citation

Vitali E. Gruzdev and Mikhail N. Libenson "Laser-induced variations of light polarization of tightly focused laser beams", Proc. SPIE 3885, High-Power Laser Ablation II, (1 February 2000); https://doi.org/10.1117/12.376988

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