Electrically Switchable High-Fold-Helix Spiral Phase Plate Based on Polymer Dispersed Liquid Crystals
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概要
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In this study, high-fold-helix spiral phase plates (SPPs) based on polymer-dispersed liquid crystals (PDLCs) with fold numbers l > 45 are fabricated. The helical light modes modulated by the plates are demonstrated. The beam profiles of the helical modes emerging from the PDLC SPPs are measured using a laser beam profiler. The results show that the beam radius of the principal maximum is linearly proportional to the l of the plate. The images of a laser beam diffracted from SPPs are recorded and found to agree well with calculations based on Fourier transformation.
- 2013-11-25
著者
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Huang Yao
Department Of Pharmaceutical Analysis China Pharmaceutical University
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Fuh Andy
Department of Physics and Electro-Optical Institute, National Cheng Kung University, Tainan, Taiwan 701, R.O.C.
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Yan Ching
Department of Physics, National Cheng Kung University, Tainan 701, Taiwan
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Wu Shing
Department of Physics, National Cheng Kung University, Tainan 701, Taiwan
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Li Ming
Department of Anatomy & Neurobiology, School of Basic Medicine, Central South University
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Fuh Andy
Department of Physics, National Cheng Kung University, Tainan 701, Taiwan
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