Browsing by Author "Myslivets, Sergey A."

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Geometric phase and o-mode blueshift in a chiral anisotropic medium inside a Fabry-Perot cavity
(2015-11-24)
Timofeev, Ivan V.
;
Gunyakov, Vladimir A.
;
Sutormin, Vitaly S.
;
Myslivets, Sergey A.
;
Arkhipkin, Vasily G.
Anomalous spectral shift of transmission peaks is observed in a Fabry-Perot cavity filled with a chiral anisotropic medium. The effective refractive index value resides out of the interval between the ordinary and the extraordinary refractive indices. The spectral shift is explained by contribution of a geometric phase. The problem is solved analytically using the approximate Jones matrix method, numerically using the accurate Berreman method, and geometrically using the generalized Mauguin-Poincare rolling cone method. The o-mode blueshift is measured for a 4-methoxybenzylidene-4'-n-butylaniline twisted-nematic layer inside the Fabry-Perot cavity. The twist is electrically induced due to the homeoplanar-twisted configuration transition in an ionic-surfactant-doped liquid crystal layer. Experimental evidence confirms the validity of the theoretical model.