Red light holographic recording and readout on an azobenzene-LC polymer hybrid composite system

Weidong Mao, Qunhui Sun, Sarfaraz Baig, Hui Lu, Michael Renxun Wang

Research output: Contribution to journalArticle

7 Scopus citations


Abstract We present for the first time stable red light two-dimensional image holographic recording in azobenzene-containing polymer-liquid crystal material following a pre-illumination process. The red light hologram recording is based on cis-to-trans transition of the azobenzene and surrounding LC reorientation. The diffraction efficiency of about 2% has been achieved and clear holograms of a commercial 2D USAF resolution target have been recorded. Using the same readout wavelength as the recording wavelength, color distortion that exists in most hologram researches with azo-containing materials is naturally eliminated. Long-time stabilities such as one-day continuous non-destructive readout and up to 10 weeks hologram storage have been demonstrated. The holographic recording material remains erasable and rewritable.

Original languageEnglish (US)
Article number20248
Pages (from-to)256-260
Number of pages5
JournalOptics Communications
StatePublished - Jul 9 2015



  • Azobenzene-LC
  • Hologram
  • Red light recording
  • Rewritable
  • Stability

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

Cite this