Nonparaxial propagation properties for a partially coherent anomalous hollow beam |
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Authors: | Kuilong Wang Chengliang Zhao Xuanhui Lu |
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Institution: | 1. Department Of Physics, Hangzhou Normal University, Hangzhou 310036, China;2. School of Physics Science and Technology, Soochow University, Suzhou 215006, China;3. Department of Physics, Zhejiang University, Hangzhou, 312000, China |
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Abstract: | Based on the generalized Raleigh-Sommerfeld diffraction integral formula, an analytical nonparaxial propagation expression of a partially coherent anomalous hollow beam (AHB) in free space is derived. The far field and the paraxial result are also presented as special cases, respectively. By using the derived formula, the nonparaxial propagation properties of a partially coherent AHB are studied numerically and are compared with the paraxial results. It is found that the nonparaxiality properties of a partially coherent AHB are closely related to its beam waist, coherent length and the propagation distance. |
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