7 February 2012 Propagation law of partially coherent vortex beam
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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.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE)
Panfeng Ding, Panfeng Ding, Hongliang Ren, 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 . Submission:
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