Tunable geometric phase retarders using photo-aligned liquid crystal devices

Nguyen Hong Minh Chau, Chih Yao Ho, Vera Marinova*, Ken-Yuh Hsu, Shiuan-Huei Lin

*Corresponding author for this work

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


Here we demonstrate the fabrication processes and working parameters of tunable phase retarders based on photoaligned Liquid Crystal (LCs) cells by combining the photo-pattering and self-assembly processes. The proposed LC devices were assembled by Indium Tin Oxide (ITO) transparent conductive layers deposited on a glass and quartz substrates and spin coated with thin polyamide (PI) layer as photo-alignment material. We study the voltage-transmittance and phase retardation behavior of assembled LC cells and demonstrate polarization sensitive spatial patterns,that openpromisingfeaturesfornext generation opticalelementsaswaveplates,lenses,phaseretarders,etc.

Original languageEnglish
Title of host publicationHolography
Subtitle of host publicationAdvances and Modern Trends VII
EditorsAntonio Fimia, Miroslav Hrabovsky, John T. Sheridan
ISBN (Electronic)9781510643826
StatePublished - 19 Apr 2021
EventHolography: Advances and Modern Trends VII 2021 - Virtual, Online, Czech Republic
Duration: 19 Apr 202123 Apr 2021

Publication series

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


ConferenceHolography: Advances and Modern Trends VII 2021
Country/TerritoryCzech Republic
CityVirtual, Online


  • Liquid crystals
  • Photoalignment
  • Polarization sensitivity
  • Polyamide
  • Tunable phase retarders


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