15 November 2000 Self-depolarization effect of high-power tightly focused laser beams in transparent isotropic materials
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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, TE0i, TEi0 and TEn). 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.
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Vitali E. Gruzdev, Vitali E. Gruzdev, Mikhail N. Libenson, Mikhail N. Libenson, } "Self-depolarization effect of high-power tightly focused laser beams in transparent isotropic materials", Proc. SPIE 4133, Polarization Analysis, Measurement, and Remote Sensing III, (15 November 2000); doi: 10.1117/12.406639; https://doi.org/10.1117/12.406639
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