An alternative model for a partially coherent elliptical dark hollow beam |
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Authors: | Xu Li Fei Wang Yangjian Cai |
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Affiliation: | 1. CRMEF Marrakech-Safi Annexe Safi 46000 Safi, Morocco;2. Laboratory of Nuclear, Atomic, Molecular, Mecanics Physics and Energetic (LPNAMME), Department of Physics, Faculty of Sciences, Chouaïb Doukkali University, P. B. 20, 24000 El Jadida, Morocco |
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Abstract: | An alternative theoretical model named partially coherent hollow elliptical Gaussian beam (HEGB) is proposed to describe a partially coherent beam with an elliptical dark hollow profile. Explicit expression for the propagation factors of a partially coherent HEGB is derived. Based on the generalized Collins formula, analytical formulae for the cross-spectral density and mean-squared beam width of a partially coherent HEGB, propagating through a paraxial ABCD optical system, are derived. Propagation properties of a partially coherent HEGB in free space are studied as a numerical example. |
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