Fullerene-doped polymer-dispersed liquid crystals as effective materials for laser modulation and hologram recording

Natalia V. Kamanina; Lev N. Kaporskii

doi:10.1117/12.429384

15 June 2001 Fullerene-doped polymer-dispersed liquid crystals as effective materials for laser modulation and hologram recording

Natalia V. Kamanina, Lev N. Kaporskii

Author Affiliations +

Proceedings Volume 4279, Organic Photonic Materials and Devices III; (2001) https://doi.org/10.1117/12.429384
Event: Symposium on Integrated Optics, 2001, San Jose, CA, United States

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.

Citation Download Citation

Natalia V. Kamanina and Lev N. Kaporskii "Fullerene-doped polymer-dispersed liquid crystals as effective materials for laser modulation and hologram recording", Proc. SPIE 4279, Organic Photonic Materials and Devices III, (15 June 2001); https://doi.org/10.1117/12.429384

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