Surface-stabilized holography in an azo-dye-doped liquid crystal

TitleSurface-stabilized holography in an azo-dye-doped liquid crystal
Publication TypeJournal Article
Year of Publication1992
AuthorsAGS Chen, and DJ Brady
JournalOptics Letters
Volume17
Start Page1231
Issue17
Pagination1231 - 1233
Date Published09/1992
Abstract

Holograms are recorded by a 514-nm laser polarized parallel to the molecular director in an azo-dye-doped nematic liquid crystal. For some surface treatments, the recorded holograms persist in the dark. For glass surfaces, exposure to light polarized normal to the molecular director erases the hologram. The hologram also vanishes when the sample is heated across the nematic to isotropic phase transition but reappears when the sample is cooled back to the nematic phase. The dynamics and strength of this effect depend strongly on the surface treatment of the sample cell. © 1992 Optical Society of America.

DOI10.1364/OL.17.001231
Short TitleOptics Letters