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5 August 1998 Fabrication of a novel-type liquid crystal phase zone plate
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Abstract
A novel structure for an electro-optically controlled Fresnel phase zone plate is proposed. This structure consists of a liquid crystal layer, which takes a homogeneous alignment parallel to the glass substrate surface, and ITO (indium tin oxide) electrode layers on the inner surface of the two glass substrates are formed with the same odd and even zone pattern respectively by using photolithography technology. This kind of zone plate in principle gives nearly 100% diffraction efficiency, and its light gathering power can be electrically adjusted. The detailed fabrication process and primary experimental results are presented.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hongwen Ren, Xinmin Huang, Zhihua Ling, Sheng Li Wu, and Kai Ma "Fabrication of a novel-type liquid crystal phase zone plate", Proc. SPIE 3557, Current Developments in Optical Elements and Manufacturing, (5 August 1998); https://doi.org/10.1117/12.318309
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