Propagation of high-power tightly focused laser beams and self-depolarization effect

Vitali E. Gruzdev; Mikhail N. Libenson

doi:10.1117/12.407319

16 August 2000 Propagation of high-power tightly focused laser beams and self-depolarization effect

Vitali E. Gruzdev, Mikhail N. Libenson

Author Affiliations +

Proceedings Volume 4065, High-Power Laser Ablation III; (2000) https://doi.org/10.1117/12.407319
Event: High-Power Laser Ablation, 2000, Santa Fe, NM, United States

Abstract

There are presented results of theoretical investigation of self- depolarization effect in transparent isotropic materials resulting in variation of initial space distribution of polarization-ellipse parameters of focused high-power laser beam. Qualitative results are obtained within non-paraxial approximation while detailed calculations are done within paraxial approximation. In particular, both linear and circular initial polarizations are shown to change and turn into elliptic polarization with inhomogeneous distribution of polarization ellipses in focal area. Detailed calculations are presented for particular case of low-order Gaussian beams (TE₀₀, TE₀₁, TE₁₀ and TE₁₁). Bearing in mind obtained results, we discuss specific symmetry structures of self- depolarization effect allowing experimental checking of described phenomenon.

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Vitali E. Gruzdev and Mikhail N. Libenson "Propagation of high-power tightly focused laser beams and self-depolarization effect", Proc. SPIE 4065, High-Power Laser Ablation III, (16 August 2000); https://doi.org/10.1117/12.407319

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