Propagation law of partially coherent vortex beam

Ding, Panfeng; Ren, Hongliang

doi:doi:10.1117/1.OE.51.1.018002

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Optical Engineering / Volume 51 / Issue 1 / Physical Optics, Diffractive Optics

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Propagation law of partially coherent vortex beam

Opt. Eng. 51, 018002 (Feb 07, 2012); http://dx.doi.org/10.1117/1.OE.51.1.018002

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Abstract

References (12)

Panfeng Ding and Hongliang Ren

Huaqiao University, College of Information Science and Engineering, Xiamen, Fujian 361021, China

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.

History

Received Aug 11, 2011
Accepted Nov 11, 2011
Revised Oct 23, 2011
Published online Feb 07, 2012

Digital Object Identifier

http://dx.doi.org/10.1117/1.OE.51.1.018002

Citation

Panfeng Ding and Hongliang Ren, "Propagation law of partially coherent vortex beam", Opt. Eng. 51, 018002 (Feb 07, 2012); http://dx.doi.org/10.1117/1.OE.51.1.018002