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Proceedings Paper

Quantitative analysis on flyback region problem of 1D transmissive liquid crystal optical phased array devices
Author(s): Lin Xu; Ziqiang Huang
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Paper Abstract

In practical application of Liquid crystal optical phased array (LCOPA) device, diffraction efficiency and deflection range are two important performance parameters, which should be improved further more. Both diffraction efficiency and deflection range are directly related to the width of flyback region. Therefore, the flyback region problem was analyzed quantitatively in this paper. According to elastic continuum theory of liquid crystal and crystal optics theory, we calculated LC director and its phase delay profile. Then we analyzed quantitatively the influence of device parameters including electrode size, alignment layer thickness and LC cell thickness on the width of flyback region. Results show that there exists a critical value of electrode size. When electrode size is larger than this critical value, the width of flyback region increases nearly linear to the increase of electrode size. The width of flyback region is not sensitive to alignment layer thickness and increases monotonously with the increase of LC cell thickness.

Paper Details

Date Published: 22 October 2010
PDF: 6 pages
Proc. SPIE 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, 76580N (22 October 2010); doi: 10.1117/12.867702
Show Author Affiliations
Lin Xu, Univ. of Electronic Science and Technology of China (China)
Ziqiang Huang, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7658:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology
Yadong Jiang; Bernard Kippelen; Junsheng Yu, Editor(s)

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