Asymmetry Peculiarities of Surface-Mediated Liquid Crystals Gratings Recorded Due to Light-Induced Anchoring

Ouskova, E.; Aryasova, Natalie; Boichuk, Valeriy; Fedorenko, D.; Slyusarenko, Kostyantyn; Reznikov, Yuriy

doi:10.1080/15421406.2010.486622

Cited by 7 publications

(2 citation statements)

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“…[160][161][162][163][164][165][166] Examples of photonic devices based on the photoaligned layers of LCs are electrically controlled Fresnel lenses, [167][168][169] polarization convertors, 170,171 and optical gratings. [172][173][174][175][176][177][178] The possibility of aligning LCs by light in micro-volumes opens new horizons for their applications in miniature LC telecommunication devices such as waveguides, optical switches and routers, etc. Photoalignment technology has already been successfully applied for alignment of LCs in a submicrometre-sized rib waveguides and electrically driven waveguide-coupled microresonators with the LC cladding layer.…”

Section: Application In Photonics and Electronicsmentioning

confidence: 99%

Photoalignment of liquid crystals: basics and current trends

2012

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Section: Application In Photonics and Electronicsmentioning

confidence: 99%

Photoalignment of liquid crystals: basics and current trends

2012

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“…6(c). Similar LC structures were generated by combined LC cells, where easy axis grating patterns were generated by an atomic force microscopy stylus [31] or due to the light-induced adsorption of azo-dye molecules [32].…”

Section: Methodsmentioning

confidence: 99%

Recording of polarization holograms in a liquid crystal cell with a photosensitive chalcogenide orientation layer [Invited]

et al. 2013

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Polarization gratings have been recorded in a combined liquid crystal (LC) cell made of a substrate covered with a photosensitive chalcogenide orientation layer and a reference substrate covered with a rubbed polyimide film. The gratings are formed due to the spatially modulated light-induced easy orientation axis on the chalcogenide surface recorded by two beams with opposite circular polarizations. The gratings are permanent, but they can be erased by one of the recording beams and re-recorded. The diffraction intensity of the circularly polarized light is achromatic and does not depend on the birefringence of the LC. The diffraction efficiency of the grating is of the order of a few percents. Application of an ac field causes a strong increase of the diffraction efficiency up to 45%.

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