Lu, X., Zhao, C., Shao, Y., et al. (2019) Phase Detection of Coherence Singularities and Determination of the Topological Charge of a Partially Coherent Vortex Beam. Applied Physics Letters, 114, 201106.1-201106.5. https://doi.org/10.1063/1.5095713

has been cited by the following article:

• TITLE: Coherent Vortices Properties of Partially Coherent Elegant Laguerre-Gaussian Beams in the Free Space

  AUTHORS: Miao Dong, Yuanjie Yang

  KEYWORDS: Coherent Vortices, Topological Charge, Coherence Singularities

  JOURNAL NAME: Optics and Photonics Journal, Vol.10 No.6, June 29, 2020

  ABSTRACT: The analytical expression of the cross-spectral density of partially coherent elegant Laguerre-Gaussian beams propagating in free space has been derived. The coherence vortex properties of such beams have been investigated. The effect of the beam parameters, including the topological charge, radial mode index and coherence length on the coherent vortex, is analyzed. The results show that the higher order (lth) of coherent vortices split to lth first order of coherent vortex. New coherent vortices of opposite sign appear, and then pairs of coherent vortices form. The propagation distance and coherence length affect the generation of coherent vortices, while the radial mode index doesn’t affect the coherent vortices. These results might be helpful for potential application of such beams in optical communication.