Speckle statistical properties of Gaussian beam from a semi-rough target in the atmospheric turbulence

Xiang, Ning-Jing; Wu, Zhensen; Hua, Xian-Sheng; Wang, Mingjun

doi:10.1016/j.ijleo.2013.05.081

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Cited by 4 publications

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“…The contrast and the statistical optical properties of speckle patterns are of great importance for the analysis of the experimental results of scientific applications of speckle patterns. Therefore, several research studies have been concerned with the statistical properties of the speckle patterns [1][2][3][4][5][6]. The speckle contrast of monochromatic and quasi-monochromatic light has been studied by [7][8][9][10][11][12][13][14][15][16].…”

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confidence: 99%

New analytical expression for speckle contrast of spectral light broadening

El‐Nicklawy¹,

Abd-Rabou²,

Elmahdy³

2017

J. Opt.

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A new analytical expression for the average speckle contrast is derived for surfaces of random roughness at reflection. Rayleigh and Simpson phase probability density distributions of non-zero phase mean value are assumed for the roughness of the surface. The behavior of a speckle contrast with a roughness root mean square of phase deviation is presented. The effect of the spectral light profile, its spectral width, the density of the scatterers of the rough surface and the average time delay between the interfering beams are taken into consideration.

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