Polychromatic Optical Vortex Generation from Patterned Cholesteric Liquid Crystals
Polychromatic Optical Vortex Generation from Patterned Cholesteric Liquid Crystals
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DOI：
10.1103/physrevlett.116.253903
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发表时间：
2016-06-22
影响因子：
8.6
通讯作者：
Ozaki, Masanori
中科院分区：
文献类型：
--
作者：
Kobashi, Junji;Yoshida, Hiroyuki;Ozaki, Masanori
描述了在螺旋相空间分布中具有奇点的胆甾液晶中光学涡流的产生。这种现象利用了布拉格反射光相位与螺旋的空间相位成比例变化的事实，在正常和斜入射下都是如此。我们的方案能够高效、多色地产生光学涡流，而不需要繁琐的制造过程和微调。
Generation of optical vortices is described in cholesteric liquid crystals with a singular point in the spatial distribution of a helix phase. The phenomenon uses the fact that a Bragg reflected light phase varies in proportion to the spatial phase of the helix, both at normal and oblique incidences. Our proposal enables high-efficiency, polychromatic generation of optical vortices without the need of a cumbersome fabrication process and fine-tuning.