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Proceedings Paper

External control of a stop band position in a visible spectra of photonic crystal opal infiltrated with nematic LC
Author(s): Loreta Rasteniene; Stasys Pajeda; Antanas Kudarauskas; Vytautas Bastys; Augustinas Kulbickas; Mantas Miksys; Rimas Vaisnoras
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Paper Abstract

Recently photonic crystals with a three-dimensional ordered structure with periodicity of the optical wavelength have attracted attention from both fundamental and practical points of view. The physics and applications of photonic crystals have been active topic of research now. The application of photonic crystals is to create tunable band gap materials especially in visible spectra region, where the gap could be controlled by an external parameter. We have studied transmission and linear dichroism spectra of synthetic opal, refractive index n = 1,342, infiltrated with nematic liquid crystal with averaged refractive index n = 1,596 or with water n = 1,30 and alcohol n = 1,28. We demonstrating that the position of the stop band in the visible spectra is shifted by changing of refractive index of the infiltrated material or by changing the filling factor or by variation of an incidence angle of light.

Paper Details

Date Published: 1 September 2004
PDF: 6 pages
Proc. SPIE 5565, XV Conference on Liquid Crystals, (1 September 2004); doi: 10.1117/12.581096
Show Author Affiliations
Loreta Rasteniene, Vilnius Pedagogical Univ. (Lithuania)
Stasys Pajeda, Vilnius Pedagogical Univ. (Lithuania)
Antanas Kudarauskas, Vilnius Pedagogical Univ. (Lithuania)
Vytautas Bastys, Vilnius Pedagogical Univ. (Lithuania)
Augustinas Kulbickas, Vilnius Pedagogical Univ. (Lithuania)
Mantas Miksys, Vilnius Pedagogical Univ. (Lithuania)
Rimas Vaisnoras, Vilnius Pedagogical Univ. (Lithuania)

Published in SPIE Proceedings Vol. 5565:
XV Conference on Liquid Crystals
Jozef Zmija, Editor(s)

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