Real-time holography in azo-dye-doped liquid crystals


Journal Article

When exposed to an Ar laser at 514 nm, azo-dye molecules in a nematic liquid-crystal host undergo photoisomerization from trans-isomers to cis-isomers. The conformation change of the azo-dye molecules reorients liquid-crystal molecules. Reversible polarization holograms can be recorded dynamically by this effect, with a threshold intensity as low as 3.0 mW/cm2 and a response time from a few hundred microseconds to 100 ms, depending on the spatial frequency of the recorded grating. © 1992 Optical Society of America.

Full Text

Duke Authors

Cited Authors

  • Chen, AG; Brady, DJ

Published Date

  • March 15, 1992

Published In

Volume / Issue

  • 17 / 6

Start / End Page

  • 441 - 443

Electronic International Standard Serial Number (EISSN)

  • 1539-4794

International Standard Serial Number (ISSN)

  • 0146-9592

Digital Object Identifier (DOI)

  • 10.1364/OL.17.000441

Citation Source

  • Scopus