Dual photorecording on cholesteric azobenzene-containing LC polymer films using helix pitch phototuning and holographic grating recording

Alexander Ryabchun (Corresponding Author), Alexey Bobrovsky, Anna Sobolewska, Valery Shibaev, Joachim Stumpe

Research output: Contribution to journalArticleAcademicpeer-review

26 Citations (Scopus)

Abstract

For the first time the possibility to perform dual recording in cholesteric LC polymer films was demonstrated by means of helix pitch photo-tuning and holographic grating recording, as far as these two photo-processes take place under the exposure to light with different wavelengths. For this purpose the cholesteric mixture of the nematic azobenzene-containing copolymer doped with the chiral-photochromic dopant was prepared and the photo-optical properties of thin planarly-oriented films of this mixture were investigated. It was found that the holographic grating recording over ∼1 min allows high diffraction efficiency values to be reached but does not disrupt the supramolecular helical structure that makes possible a two independent images recording.
Original languageEnglish
Pages (from-to)6245-6250
Number of pages6
JournalJournal of materials chemistry
Volume22
Issue number13
DOIs
Publication statusPublished - 2012
Externally publishedYes

Fingerprint Dive into the research topics of 'Dual photorecording on cholesteric azobenzene-containing LC polymer films using helix pitch phototuning and holographic grating recording'. Together they form a unique fingerprint.

Cite this