Azo dye-doped photorefractive polymers

B. Volodin, K. Meerholz, Sandaiphon, B. Kippelen, N. Peyghambarian

Research output: Contribution to journalConference articlepeer-review

9 Scopus citations


We report the studies of the photorefractive properties of the two polymer composites based on poly(N-vinylcarbazole)(PVK). The polymers were obtained by doping PVK with 2,4,7 trinitro-9-fluorenone as a sensitizer agent and two differentazo dyes as nonlinear chromophores. Best results were obtained for the polymer doped with 2,5-dimethyl-4-pnitrophenylazoanisole, which showed a maximum diffraction efficiency of 34% at 40 V/pm external electric field strengthin 105 tm thick samples. The influence of different geometries of the hologram writing-retrieval on the diffractionefficiency is described. Net amplification of one of the writing beams in two-beam coupling within the material has beenobserved. Recording of the holograms of 2-dimensional objects in real time has been demonstrated with good resolution andimage brightness. All the results were obtained with a low power visible laser diode emitting at 675 nm.

Original languageEnglish (US)
Pages (from-to)72-81
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Jun 2 1994
EventAdvanced Photonics Materials for Information Technology 1994 - Los Angeles, United States
Duration: Jan 23 1994Jan 29 1994

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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