Fabrication of a novel-type liquid crystal phase zone plate

Hongwen Ren; Xinmin Huang; Zhihua Ling; Sheng Li Wu; Kai Ma

doi:10.1117/12.318309

5 August 1998 Fabrication of a novel-type liquid crystal phase zone plate

Hongwen Ren, Xinmin Huang, Zhihua Ling, Sheng Li Wu, Kai Ma

Proceedings Volume 3557, Current Developments in Optical Elements and Manufacturing; (1998) https://doi.org/10.1117/12.318309
Event: Photonics China '98, 1998, Beijing, China

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.

Citation Download Citation

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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