Journal
OPTICS EXPRESS
Volume 21, Issue 9, Pages 10954-10961Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.010954
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Funding
- National Science Council of Taiwan [NSC 101-2112-M-006-011-MY3]
- Top University Program of the National Cheng Kung University
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A liquid crystal (LC) device, called a q-plate (QP), which is based on axially symmetric photo-alignment was investigated. The electrically tunable LC QP device could be modulated to control the shape and polarization of a linearly polarized Gaussian laser beam that propagated through it. The intensity profile and polarization distribution were simulated by MATLAB and 1D-DIMOS. The results of the simulation were consistent with experimental findings. In the fabricated electrically tunable LC QP device, switching between different beam-profile configurations can be realized by applying a voltage. Moreover, the fabrication of an LC QP is relatively simple, and the device has potential for such practical applications as beam shape modulators and spatial polarization converters use in diffractive optics and imaging systems. (C) 2013 Optical Society of America
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