Fabrication and characterization of a micro tunable cat's eye retro-reflector |
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| Authors: | Keng-hsing Chao |
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| Institution: | Graduate Institute of Photonics and Optoelectronics and Department of Electrical Engineering, National Taiwan University, Taipei 10617, Taiwan ROC |
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| Abstract: | In this paper, we report on a micro tunable cat's eye retro-reflector. The tunability is obtained through the use of a smart film, a polymer dispersed liquid crystal device (PDLC). The cat's eye device consists of three subassemblies, a front-side focusing unit, the smart film, and a back-side reflecting unit. The characterization of the device, considering possible fabrication inaccuracy such as misalignment, is presented. Such a device can be used in a free-space communication system, or more specifically, an optical identification system. |
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| Keywords: | Cat's eye Retro-reflector Optical identification |
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