Ring-shaped hollow multi-Gaussian schell-model array beams

A partially coherent light source called a hollow rectangular multi-Gaussian Schell-model array (HRMGSMA) is introduced. The relations between the spectral density of the far field and the characteristics of the source are discussed in detail. It is shown that the characteristics of the arrays, including the hollow size, shapes of the arrays and lobes, quantities of rings and lobes, and directions of lobes, can be adjusted flexibly by changing the related parameters of the HRMGSMA source.

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Atmospheric turbulence effects on hollow Gaussian Schell-model array beams

Shi,

Mei,

Mao

2023

J. Opt. Soc. Am. A

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Two types of hollow array beams with circular and rectangular distributions on propagating in atmospheric turbulence are investigated and analyzed comparatively with that in free space. Analytical formulas for the cross-spectral density function of two kinds of hollow array beam propagation in linear isotropic random media are derived and used to examine the behavior of the spectral densities. It is found that such beams possess stable hollow arrays with any dimension and lobes in free space, while such distributions only maintain small distances in atmospheric turbulence and ultimately tend to a Gaussian shape due to the turbulence destroying the hollow array profiles. The effects of the turbulence parameters on the behavior of the spectral density are analyzed in depth.

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Ring-shaped hollow multi-Gaussian schell-model array beams

Cited by 4 publications

References 21 publications

Rectangular hollow twisted multi-Gaussian Schell-model source

Rectangular hollow twisted multi-Gaussian Schell-model source

Hollow rectangular multi-Gaussian Schell-model array source

Atmospheric turbulence effects on hollow Gaussian Schell-model array beams

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