Propagation law of partially coherent vortex beam

Panfeng Ding; Hongliang Ren

doi:10.1117/1.OE.51.1.018002

7 February 2012 Propagation law of partially coherent vortex beam

Panfeng Ding, Hongliang Ren

Author Affiliations +

Funded by: National Nutritious Natural Science Foundation of China, Science and Technology Planning Project of Xiamen of China

Optical Engineering, Vol. 51, Issue 1, 018002 (February 2012). https://doi.org/10.1117/1.OE.51.1.018002

Abstract

We propose the analytic solution of cross-spectral density matrix (CSDM) of a partially coherent vortex beam while propagating. The solution to the propagation law is appropriate for a Gaussian Schell-model vortex beam to any order. It is found that the solution of CSDM of a Gaussian Schell-model beam revealed by Emil Wolf is a special instance. By this general solution, the intensity distribution, especially the degree of polarization and the mean-squared beam width of the partially coherent vortex beam, are investigated. It is found that the propagation character of the beam width is decided by the correlation-length, and that the topological charge affects only the value of the beam width.

Citation Download Citation

Panfeng Ding and Hongliang Ren "Propagation law of partially coherent vortex beam," Optical Engineering 51(1), 018002 (7 February 2012). https://doi.org/10.1117/1.OE.51.1.018002

Published: 7 February 2012

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