Optical properties of the distorted cholesteric structure*
- 1 September 1974
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 64 (9), 1178-1189
- https://doi.org/10.1364/josa.64.001178
Abstract
Light propagation along the helical axis of cholesteric liquid crystals, whose structure has been distorted by a magnetic or electric field perpendicular to the helix axis, is theoretically investigated. The solutions show several reflection bands whose centers are given by the Bragg condition m λm = 2S n (m is an integer, S is the period of the distorted structure, and n is the average refractive index of the material). The bands with m ≥ 2 consist of three subbands, each characterized by the dependence of the reflection on the polarization of the incident beam. Thus, for example, an incident beam linearly polarized in the direction of the distorting field will be reflected at only two of these subbands. Except for very strong applied fields, the band m = 1 is composed of two subbands only. Outside the reflection bands, the modes of propagation are orthogonal linear polarizations.Keywords
This publication has 14 references indexed in Scilit:
- Selected Optical Properties of Mixtures of Cholesteric Liquid CrystalsApplied Optics, 1971
- Selective Reflection by Cholesteric Liquid CrystalsMolecular Crystals and Liquid Crystals, 1971
- Reflection and Transmission by Single-Domain Cholesteric Liquid Crystal Films: Theory and VerificationMolecular Crystals and Liquid Crystals, 1970
- DISTORTION OF A CHOLESTERIC STRUCTURE BY A MAGNETIC FIELDApplied Physics Letters, 1969
- Magnetically Induced Cholesteric to Nematic Phase Transition in Liquid CrystalsPhysical Review Letters, 1969
- Electromagnetic Wave Propagation in Cholesteric MaterialsJournal of the Optical Society of America, 1968
- Calcul de la distorsion d'une structure cholesterique par un champ magnetiqueSolid State Communications, 1968
- LIQUID CRYSTALSSoviet Physics Uspekhi, 1967
- Rotatory power and other optical properties of certain liquid crystalsActa Crystallographica, 1951
- The theory of liquid crystalsTransactions of the Faraday Society, 1933