3 December 2014 Gaussian beam reflection characteristics on 2D randomly rough sea surface influenced by incident laser parameters
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Abstract
Laser reflection characteristics from the two-dimensional randomly rough sea surface are affected by the sea state, weather conditions, the incident laser parameters and other factors. All of the factors could not be artificially changed except the incident laser parameters. Therefore, the research of the relationship between laser reflection characteristics from 2-D randomly rough sea surface and incident laser parameters will give support to laser detection on the sea surface. This paper deals with the simulated calculation of the Gaussian beam reflection characteristics from the 2-D randomly rough sea surface with different incident laser parameters. In this paper, the 2-D rough sea surface is simulated with fractal method, after which the sea surface is divided into a lot of small planes, the width or length of which is much greater than the wavelength of the incident laser. Then the geometrical optics method is used to calculate the Gaussian beam reflection from 2-D randomly and rough sea surface. After that, the Gaussian beam reflection characteristics varies different incident laser parameters are numerical calculated. Finally, the detailed discussion of some factors including the divergence angle and the incident angle of the Gaussian beam which have influences on reflection properties is given.
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Shuang Zhang, Shuang Zhang, Xiaohui Zhang, Xiaohui Zhang, Chunsheng Sun, Chunsheng Sun, } "Gaussian beam reflection characteristics on 2D randomly rough sea surface influenced by incident laser parameters", Proc. SPIE 9297, International Symposium on Optoelectronic Technology and Application 2014: Laser and Optical Measurement Technology; and Fiber Optic Sensors, 92971Z (3 December 2014); doi: 10.1117/12.2073147; https://doi.org/10.1117/12.2073147
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