P‐123: Patterned Rubbing Alignment Technology

Muravsky, Alexander; Агабеков, В. Е.; Жавнерко, Г. К.; Mahilny, U. V.; Станкевич, А. И.

doi:10.1889/1.3500303

Cited by 12 publications

(12 citation statements)

References 8 publications

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“…Waveguide films from the LC monomer RMM491, Merck were formed on quartz substrates. The benzaldehyde polymer M-16 [2] was used as an alignment agent, a layer of which 0.08-0.09 μm thick was applied from the solution to a substrate, rubbed in a certain direction, and UV irradiated. Then RMM491 solution was also applied to the surface of the alignment layer by spin-coating.…”

Section: Methodsmentioning

confidence: 99%

“…In addition, the refractive index of the layer material should be sufficiently high, at least above the ordinary refractive index of the LC n . The required functional properties are provided by polymeric materials, the refractive index of which varies in a wide range [1], and the surface has homogeneous or multi-domain LC alignment properties [2]. In this paper, we compare the waveguide properties of highly refractive layers from a photopolymerizable LC monomer and a new photocrosslinkable copolymer with benzaldehyde, phenyl and diphenyl side groups.…”

Section: Introductionmentioning

confidence: 99%

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Polymeric Layers for Optical Structures with Controllable Waveguide Parameters

Mahilny¹,

Станкевич²

2018

KEn

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polymeric Layers for Optical Structures with Controllable Waveguide Parameters

Mahilny¹,

Станкевич²

2018

KEn

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“…This is realized using the special patterned rubbing alignment technology to create the planar LC orientational domains shown in Fig. 8 [22]. The experimental substrates have transparent electrodes whose surface is coated with a photosensitive alignment polymer.…”

Section: Methods Used To Obtain the Patterned Planar Orientation Of Nlcmentioning

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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“…inhomogeneous anchoring [9][10][11] or pretilt angle [12]. In this case, the threshold voltage and, as a result, the director distribution are functions of the spatial coordinate, along which the anchoring energy or the pretilt angle are varied.…”

Section: Liquid-crystal Based Light Steering Optical Elementsmentioning

confidence: 99%