Efficient configuration transition in a new azobenzene-LC polymer for red light holographic recording

Weidong Mao, Qunhui Sun, Sarfaraz Baig, Hui Lu, Michael R. Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


We demonstrate cis-to-trans transition based red light holographic recording in an azobenzene-liquid crystal (LC) polymer material following efficient crucial transition of trans-to-cis, which is prepared by selected wavelength light pre-illumination. The presence and orientation of soft liquid crystal impregnating the polymer backbone allows the cis intermediate states to hold for the stable red hologram recording and non-destructive readout. Using a 50 nm bandwidth light source at the center wavelength of 575 nm, we have efficient pre-illumination on the material. The diffraction efficiency of up to 2% can be achieved by a HeNe laser at 632.8 nm wavelength, and two-dimensional holograms of USAF resolution target are successfully recorded.

Original languageEnglish (US)
Title of host publicationOrganic Photonic Materials and Devices XIV
StatePublished - Mar 23 2012
EventOrganic Photonic Materials and Devices XIV - San Francisco, CA, United States
Duration: Jan 23 2012Jan 25 2012

Publication series

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


OtherOrganic Photonic Materials and Devices XIV
Country/TerritoryUnited States
CitySan Francisco, CA


  • Azobenzene
  • Hologram
  • Liquid Crystal

ASJC Scopus subject areas

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


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