Diagnostics of lens-like media with small-scale inhomogeneities by method of probing beam intensity moments

Alexander Ya. Bekshaev; Valentin M. Grimblatov

doi:10.1117/12.234231

1 March 1996 Diagnostics of lenslike media with small-scale inhomogeneities by method of probing beam intensity moments

Alexander Ya. Bekshaev, Valentin M. Grimblatov

Proceedings Volume 2713, Fifth International Conference on Industrial Lasers and Laser Applications '95; (1996) https://doi.org/10.1117/12.234231
Event: Fifth International Conference on Industrial Laser and Laser Applications '95, 1995, Shatura, Moscow, Russian Federation

Abstract

The use of Gaussian probing beams for measuring parameters of distributed lenses is well known. But common methods become invalid in widespread cases when investigated media contain additive scattering inhomogeneities. This report is devoted to the usual scheme generalization able to overcome mentioned restrictions. It is shown that utilizing arbitrary paraxial probing beams, characterized by space-angle intensity moments, enables us to solve this task effectively. The equations for evolution of moments in lens-like media with small- scale stochastic inhomogeneity are derived and analyzed, on which basis some recommendations are made for fast and suitable measurement of medium parameters.

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Alexander Ya. Bekshaev and Valentin M. Grimblatov "Diagnostics of lenslike media with small-scale inhomogeneities by method of probing beam intensity moments", Proc. SPIE 2713, Fifth International Conference on Industrial Lasers and Laser Applications '95, (1 March 1996); https://doi.org/10.1117/12.234231

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