Surface-sustained permanent gratings in nematic liquid crystals doped with carbon nanotubes

Wei Lee*, Hui Yu Chen, Sheng Long Yeh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

Response properties of photoinduced gratings were studied in planar cells of liquid crystal doped with multiwalled carbon nanotubes. The grating formation time deduced from beam-coupling measurements was obtained to be ∼30 ms. Absorption spectroscopy implies that the permanent gratings are associated with periodically distributed carbonaceous material adsorbed on the inner surfaces of the cell windows under prolonged illumination to the 514.5-nm beams, giving rise to the persistent light-induced modulation of the easy axis.

Original languageEnglish
Pages (from-to)482-487
Number of pages6
JournalOptics Express
Volume10
Issue number11
DOIs
StatePublished - 1 Jan 2002

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