Fabrication and characterization of a micro tunable cat's eye retro-reflector

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-...

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Bibliographic Details
Published in:Optics communications 2011-10, Vol.284 (21), p.5221-5224
Main Authors: Chao, Keng-hsing, Liao, Chun-da, Yang, Bing-jun, Tsai, Jui-che
Format: Article
Language:English
Subjects:
Cat's eye
Communication systems
Devices
Dispersion
Focusing
Liquid crystals
Misalignment
Optical identification
Polymeric films
Retro-reflector
Subassemblies
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Summary: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.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2011.06.063