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

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationOptical Design and Testing IX
EditorsYongtian Wang, Pablo Benitez, Osamu Matoba
PublisherSPIE
ISBN (Electronic)9781510630871
DOIs
Publication statusPublished - 2019
EventOptical Design and Testing IX 2019 - Hangzhou, China
Duration: 21 Oct 201922 Oct 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11185
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptical Design and Testing IX 2019
Country/TerritoryChina
CityHangzhou
Period21/10/1922/10/19

Keywords

  • Interferometry
  • Liquid crystal CGH
  • Photoalignment technology
  • Spatial light modulator

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