Polarization separation of light beams at the interface of two mesophases

Komar, Andrei; Kurochkina, M. A.; Melnikova, A. A.; Станкевич, А. И.; Толстик, А. Л.

doi:10.1134/s1063785011080062

Cited by 6 publications

(6 citation statements)

References 10 publications

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“…The light guiding within an electrically induced and controlled NLC waveguide is based on total internal reflection from two regions within the NLC layer with a different spatial distribution of the molecules [13,14,29]. When there is no voltage applied, the NLC molecules are uniformly oriented in a planar configuration (along the z-axis) over the whole volume of the sample.…”

Section: Linear Waveguidesmentioning

confidence: 99%

Electrical Control of Optical Liquid-Crystal-Guided Microstructures

Kwaśny

Laudyn

2022

Crystals

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Section: Linear Waveguidesmentioning

confidence: 99%

Electrical Control of Optical Liquid-Crystal-Guided Microstructures

Kwaśny

Laudyn

2022

Crystals

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“…The schemes offering the creation of interfaces between two LC modes differing in orientations of the director are of particular interest. At the interface of two director orientational domains, one can realize reflection, refraction, and polarizational separation of light beams [13][14][15][16]; with the use of several interfaces, the waveguided propagation of laser radiation can be attained [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Optical switch based on the electrically controlled liquid crystal interface

et al. 2015

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The peculiarities of the linearly polarized light beam reflection at the interface within the bulk of a nematic liquid crystal (NLC) cell with different orientations of the director are analyzed. Two methods to create the interface are considered. Combination of the planar and homeotropic orientations of the NLC director is realized by means of a spatially structured electrode under the applied voltage. In-plane patterned azimuthal alignment of the NLC director is created by the patterned rubbing alignment technique. All possible orthogonal orientations of the LC director are considered; the configurations for realization of total internal reflection are determined. The revealed relationship between the propagation of optical beams in a liquid crystal material and polarization of laser radiation has enabled realization of the spatial separation for the orthogonally polarized light beams at the interface between two regions of NLC with different director orientations (domains). Owing to variations in the applied voltage and, hence, in the refractive index gradient, the light beam propagation directions may be controlled electrically.

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“…By analysis of various combinations of the orthogonal NLC director orientations, the optimum configurations have been established for realization of the total internal reflection (TIR) effect of the linearly polarized light beams [20]. Using the two interfaces of LC regions having orthogonal director orientations, one can design LC waveguides to implement the waveguide propagation of laser radiation [21,22].…”

Section: Introductionmentioning

confidence: 99%

Electrically controlled spatial-polarization switch based on patterned photoalignment of nematic liquid crystals

et al. 2016

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A switching scheme for two orthogonal modes of laser radiation that is based on the total internal reflection effect realized at the interface of two liquid crystal regions with orthogonal director orientations is proposed. To create the photorefractive interface within the bulk of a liquid crystal, an original technique based on self-alignment of azo dye photoalignment and absorbing electrode patterns has been developed. Spatial separation of the orthogonally polarized light beams and their switching (when the positions of reflected and transmitted light beams are switched) due to the voltage applied has been experimentally realized.

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Polarization separation of light beams at the interface of two mesophases

Cited by 6 publications

References 10 publications

Electrical Control of Optical Liquid-Crystal-Guided Microstructures

Electrical Control of Optical Liquid-Crystal-Guided Microstructures

Optical switch based on the electrically controlled liquid crystal interface

Electrically controlled spatial-polarization switch based on patterned photoalignment of nematic liquid crystals

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