High-Order Sinc-Correlated Model Vortex Beams

Autor: Jixian Wang, Zhangrong Mei, Yonghua Mao, Xiaohui Shi, Guoquan Zhou
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Photonics, Vol 10, Iss 5, p 550 (2023)
Druh dokumentu: article
ISSN: 2304-6732
DOI: 10.3390/photonics10050550
Popis: We propose a new partially coherent vortex source model in which the spatial correlation function is a sinc function on the difference from the q-th power of the coordinates of two points of the source field. The beam radiated by such source is termed the high-order sinc-correlated model vortex (SCMV) beam. We derived the propagating formula of the cross-spectral density (CSD) function for SCMV beams in atmospheric disturbances. On the basis of the derived analytical expression, the behavior of the spectral density of the SCMV beams propagating in free space and atmosphere turbulence was investigated under comparative analysis. The results show that the spectral densities of such beams exhibited interesting novel features, which were significantly different from those of the trivial vortex beams.
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