Тип публикации: статья из журнала
Год издания: 2015
Идентификатор DOI: 10.1103/PhysRevE.92.052504
Ключевые слова: Anisotropy, Liquid crystals, Nematic liquid crystals, Refractive index, Anisotropic medium, Effective refractive index, Experimental evidence, Ionic surfactants, Jones matrix method, Liquid crystal layers, Theoretical modeling, Transmission peaks, Anisotropic media
Аннотация: 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 problemПоказать полностьюis 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.
Журнал: PHYSICAL REVIEW E
Выпуск журнала: Vol. 92, Is. 5
ISSN журнала: 15393755
Место издания: COLLEGE PK
Издатель: AMER PHYSICAL SOC