Work

Radial anisotropic twisted Hermite–Gaussian Schell-model beam array and its influence by turbulence effects

Year: 2025

Type: article

Abstract: We propose a new twisted partially coherent beam source termed the radial anisotropic twisted Hermite-Gaussian Schell-model beam array (RATHGSMBA). An analytical expression for the cross-spectral density function of the RATHGSMBA is derived, and its propagation characteristics in non-Kolmogorov turbulence are analyzed. We demonstrate that each sub-beam undergoes splitting and rotates uniformly in the same direction during propagation. After a certain distance, beam divergence causes the intensities of adjacent sub-beams to overlap, resulting in complex interference profiles. In the far field, the overall intensity distribution converges to that of an individual array element due to the progressive dispersion of the sub-beams. Multiple adjustable parameters provide control over the beam profile evolution throughout propagation. This work proposes what we believe to be a new class of customizable partially coherent sources and suggests potential applications leveraging the twist phase in areas such as high-power laser systems, optical communications, and manipulation.

Source: Optics Express

DOI: 10.1364/oe.578175

Authors: Yong Wu, Tianbao Tao, Jun Qu

Language: English

Topic: Orbital Angular Momentum in Optics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funder: National Natural Science Foundation of China

Award: G5375228569