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Three-dimensional multiple optical cages formed by focusing double-ring shaped radially and azimuthally polarized beams 被引量:2
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作者 Tingting Zeng Jianping Ding 《Chinese Optics Letters》 SCIE EI CAS CSCD 2018年第3期44-47,共4页
We propose and simulate a method for generating a three-dimensional (3D) optical cage in the vicinity of focus by focusing a double-ring shaped radially and azimuthally polarized beam. Our study shows that the combi... We propose and simulate a method for generating a three-dimensional (3D) optical cage in the vicinity of focus by focusing a double-ring shaped radially and azimuthally polarized beam. Our study shows that the combination of an inner ring with an azimuthally polarized field and an outer ring with a radially polarized field and a phase factor can produce an optical cage with a dark region enclosed by higher intensity. The shape of the cage can be tailored by appropriately adjusting the parameters of double-mode beams. Furthermore, multiple 3D optical cages can be realized by applying the shift theorem of the Fourier transform and macro-pixel sampling algorithm to a double-ring shaped radially and azimuthally polarized beam. 展开更多
关键词 Three-dimensional multiple optical cages formed by focusing double-ring shaped radially and azimuthally polarized beams
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