Novel liquid-crystal computer-generated hologram based on spatial light modulator interference exposure method

Shaopu Wang; Shanping Jiang; Yao Hu; Danyi Wang; Pengsong Zhang

doi:10.1117/12.2536465

19 November 2019 Novel liquid-crystal computer-generated hologram based on spatial light modulator interference exposure method

Shaopu Wang, Shanping Jiang, Yao Hu, Danyi Wang, Pengsong Zhang

Author Affiliations +

Proceedings Volume 11185, Optical Design and Testing IX; 1118508 (2019) https://doi.org/10.1117/12.2536465
Event: SPIE/COS Photonics Asia, 2019, Hangzhou, China

Abstract

The application of Computer- Generated Hologram (CGH) in spatial optical field modulation has greatly promoted the advancement of cutting-edge technologies such as ultra-precise measurement, optical tweezers, super resolution. However, the current processing of CGH is mainly based on microlithography technology. The minimum line width and processing accuracy of CGH have become a crux that limits its further application. In response to the crux, this paper proposes a liquid crystal CGH based on spatial light modulator (SLM) interference exposure method and photoalignment technology, combining the advantages of optical holography and computer-generated holography, aiming at achieving design and fabrication of high precision, maskless, rewritable, sub-micron linewidth liquid crystal CGH. This paper mainly elaborates the principle and design method of the liquid crystal CGH, laying a theoretical foundation for its subsequent widespread application.

Citation Download Citation

Shaopu Wang, Shanping Jiang, Yao Hu, Danyi Wang, and Pengsong Zhang "Novel liquid-crystal computer-generated hologram based on spatial light modulator interference exposure method", Proc. SPIE 11185, Optical Design and Testing IX, 1118508 (19 November 2019); https://doi.org/10.1117/12.2536465

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