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Focal shift of radial varying polarized Bessel Gauss beam with radial phase modu

上传者: 2021-02-07 15:10:15上传 PDF文件 2.06MB 热度 19次
Focusing shift of Bessel-Gauss (BG) beam with radial varying polarization is investigated by vector diffraction theory in this article. The radial phase modulation is given by a function of radial direction angle θ and m. It was found that the focal shift only can be altered considerably by the phas
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