Liquid crystal tunable filters and polarization controllers for biomedical optical imaging

Ofir Aharon, Avner Safrani, Riki Moses, I. Abdulhalim

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

8 Scopus citations


Liquid crystal (LC) devices exhibit fast and strong tuning and switching capabilities using small voltages and can be miniaturized thus have a great potential to be used with miniature optical imaging systems for biomedical applications. LC devices designed specifically for integration into biomedical optical imaging systems are presented. Using a combination of one or two LC retarders we obtained polarimetric imaging of the skin. LC tunable filters with high dynamic range and large throughput are designed for hyperspectral imaging and for spectral domain optical coherence tomography. The designs are based on several concepts both using the classical stack of retarders and using more modern designs based on single layer in a waveguide or in a Fabry-Perot cavity.

Original languageEnglish
Title of host publicationLiquid Crystals XII
StatePublished - 12 Nov 2008
EventLiquid Crystals XII - San Diego, CA, United States
Duration: 11 Aug 200812 Aug 2008

Publication series

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


ConferenceLiquid Crystals XII
Country/TerritoryUnited States
CitySan Diego, CA


  • Biomedical optics
  • Modulators
  • Skin imaging
  • Tunable LCs filter
  • Tunable retarders

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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