Photorefractive polymer in reflection geometry with large efficiency

Muhsin Eralp, Jayan Thomas, Savaş Tay, Guoqiang Li, Robert Norwood, Nasser Peyghambarian

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


We have investigated photorefractive (PR) properties of a polymer composite with low glass-transition temperature (T g) in a symmetric reflection geometry. A diffraction efficiency of more than 30% is observed in 105μm thick devices. In low T g photorefractive polymers, poling of the nonlinear optical chromophores at room temperature leads to birefringence in the material. The birefringence will alter the Bragg condition, as the propagation vectors for object and reference beams as well as the readout angle are influenced We observed the Bragg-mismatch effect that caused a reduction in diffraction efficiency as the external field is increased. We have varied the angle of readout beam slightly at each bias field to get the highest efficiency.

Original languageEnglish (US)
Title of host publicationLinear and Nonlinear Optics of Organic Materials VI
StatePublished - 2006
EventLinear and Nonlinear Optics of Organic Materials VI - San Diego, CA, United States
Duration: Aug 15 2006Aug 17 2006

Publication series

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


OtherLinear and Nonlinear Optics of Organic Materials VI
Country/TerritoryUnited States
CitySan Diego, CA


  • Nonlinear polymers
  • Photorefractive polymers
  • Reflection geometry

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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