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Proceedings Paper

Fullerene-doped polymer-dispersed liquid crystals as effective materials for laser modulation and hologram recording
Author(s): Natalia V. Kamanina; Lev N. Kaporskii
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Paper Abstract

Polymer dispersed liquid crystals are successfully used in display technique because they are of high film-forming capability and photoconductivity inherent in a polymer matrix and of electro-optical and aligning effect in a liquid crystal mesophase. The laser modulation and the holographic recording in the polymer dispersed liquid crystal composites based on some (pi) -conjugate organic compounds doped with fullerenes C60 and C70 have been investigated with a use of cw He-Ne and picosecond pulsed Nd lasers. Both the 80% modulation of laser beams at repetition frequency of 0.2 - 3 Hz and 20% one at 35 Hz have been obtained. The laser induced refractive index in the picosecond range was 0.75 X 10-3 at laser power density of 33 mJ(DOT)cm-2, that was larger than the one for polymer dispersed liquid crystal doped by dyes.

Paper Details

Date Published: 15 June 2001
PDF: 5 pages
Proc. SPIE 4279, Organic Photonic Materials and Devices III, (15 June 2001); doi: 10.1117/12.429384
Show Author Affiliations
Natalia V. Kamanina, S.I. Vavilov State Optical Institute (Russia)
Lev N. Kaporskii, S.I. Vavilov State Optical Institute (Russia)

Published in SPIE Proceedings Vol. 4279:
Organic Photonic Materials and Devices III
Bernard Kippelen; Donal D. C. Bradley, Editor(s)

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