Return back of the extraordinary beam for oblique incidence in helical liquid crystals with large pitch

The light propagation in helical liquid crystals with the pitch much larger than the wavelength of light is under consideration. It is predicted theoretically and observed experimentally that the extraordinary wave returns back if the incidence angle is larger than some critical value. This effect r...

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Bibliographic Details
Published in:Europhysics letters 2005-01, Vol.69 (1), p.68-74
Main Authors: Aksenova, E. V, Karetnikov, A. A, Kovshik, A. P, Romanov, V. P, Val'kov, A. Yu
Format: Article
Language:English
Subjects:
41.85.Ct
42.25.Lc
42.70.Df
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Summary:The light propagation in helical liquid crystals with the pitch much larger than the wavelength of light is under consideration. It is predicted theoretically and observed experimentally that the extraordinary wave returns back if the incidence angle is larger than some critical value. This effect results from the wave guide propagation of light in liquid crystals and is not related with the reflection on the boundary.
ISSN:0295-5075
1286-4854
DOI:10.1209/epl/i2004-10311-6