Coherence of optical waves at conic focusing in a turbulent atmosphere

Igor P. Lukin

doi:10.1117/12.2249040

29 November 2016 Coherence of optical waves at conic focusing in a turbulent atmosphere

Igor P. Lukin

Proceedings Volume 10035, 22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 100351Q (2016) https://doi.org/10.1117/12.2249040
Event: XXII International Symposium Atmospheric and Ocean Optics. Atmospheric Physics, 2016, Tomsk, Russian Federation

Abstract

The features of focusing of a Gaussian optical beam with any curvature of parabolic wave front a conic lens (an axicon) in a randomly inhomogeneous medium are studied. The analysis of a problem is based on the solution of the equation for the second-order mutual coherence function of a field of an optical beam. The distribution of mean intensity of an optical beam in longitudinal and transverse to direction of propagation of an optical radiation are calculated. The influence of a randomly inhomogeneous medium on a change of a radius of a central part of an optical beam in the range of a focal region for axicon is estimated. The stability criterion of a spatial structure generated thus a pseudo-Bessel beam to influence of random inhomogeneities of a medium is derived. The behavior of a coherence radius of the focused optical beam depending on characteristics of a randomly inhomogeneous medium is examined.

Citation Download Citation

Igor P. Lukin "Coherence of optical waves at conic focusing in a turbulent atmosphere", Proc. SPIE 10035, 22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 100351Q (29 November 2016); https://doi.org/10.1117/12.2249040

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KEYWORDS

Atmospheric optics

Coherence (optics)

Axicons

Atmospheric propagation

Ocean optics

Chromium

Beam propagation method

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