Journal ArticleDOI
Holographic grating formation in dye- and fullerene C(60)-doped nematic liquid-crystal film.
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TLDR
Transient and persistent holographic gratings have been observed in dye- and fullerene C(60)-doped nematic liquid-crystal films and the nature and time evolution of the underlying mechanisms, such as space-charge field production, flows, and dielectric- and conductivity-induced torques are examined.Abstract:
Transient and persistent holographic gratings have been observed in dye- and fullerene C60-doped nematic liquid-crystal films. The nature and time evolution of the underlying mechanisms, such as space-charge field production, flows, and dielectric- and conductivity-induced torques, and the resultant director axis reorientation and refractive-index gratings are examined.read more
Citations
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Photomodulation of liquid crystal orientations for photonic applications
TL;DR: Two types of photomodulation of orientations of liquid crystals (LCs) are reviewed: 1) order-disorder phase transitions induced by photochemical reactions of photochromic molecules and 2) orderorder alignment change of LCs (change in LC directors) induced by photoochemical reactions or without photochemical events.
Journal ArticleDOI
Nonlinear optics of liquid crystalline materials
TL;DR: In this paper, a review of the optical nonlinearities of liquid crystals is presented, and a thorough review of a wide range of nonlinear optical processes and phenomena enabled by these unique properties.
Journal ArticleDOI
Liquid-crystal photonic applications
TL;DR: In this article, the use of liquid crystals in different photonic components: optical filters and switches, beam-steering devices, spatial light modulators, integrated devices based on optical waveguiding, lasers, and optical nonlinear components are discussed.
Journal ArticleDOI
Orientational photorefractive effects in nematic liquid crystal films
TL;DR: In this paper, the fundamental mechanisms for nonlinear electro-optical effects in nematic liquid crystal films are discussed, and detailed expressions for the three principal mechanisms for space charge fields formation and various dielectric, conductivity and flow induced torques that are responsible for the liquid crystal director axis reorientation process are derived.
Journal ArticleDOI
Alignment modulation of azobenzene-containing liquid crystal systems by photochemical reactions
Yanlei Yu,Yanlei Yu,Tomiki Ikeda +2 more
TL;DR: In this article, a review of recent progress in alignment modulation of azobenzene-containing liquid crystal systems by photochemical reactions has been reviewed by dividing the modulation methods into two types: phase transitions (order disorder change) and change of liquid crystal directors (order-order change).
References
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Journal ArticleDOI
Observation of the photorefractive effect in a polymer.
TL;DR: The observation of the photorefractive effect in an amorphous electro-optic material, the nonlinear polymer bisphenol A diglycidyl ether 4-nitro-1,2,phenylenediamine (bisA-NPDA) make photoconductive by doping with the hole transport agent diethylaminobenzaldehyde-diphenyl hydrazone.
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Erratum: Conduction‐Induced Alignment of Nematic Liquid Crystals: Basic Model and Stability Considerations
TL;DR: In this article, the stability of a uniform orientation pattern in electric fields parallel or perpendicular to the preferred axis is investigated, with respect to a complete set of sinusoidal perturbations and including distortional and (stabilizing) magnetic torques.
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Observation of orientational photorefractive effects in nematic liquid crystals
TL;DR: Nonlinear photorefraction in pure aligned nematic liquid crystals in the presence of an applied dc electric field is reported, attributed to nematic axis reorientation created by the photoinduced space-charge field in combination with the applied dc field.
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Photophysical properties of fullerenes and fullerene/N,N-diethylaniline charge-transfer complexes
Journal ArticleDOI
Surface-stabilized holography in an azo-dye-doped liquid crystal
Alan G.-S. Chen,David J. Brady +1 more
TL;DR: Holograms are recorded by a 514-nm laser polarized parallel to the molecular director in an azo-dye-doped nematic liquid crystal to study the dynamics and strength of this effect depend strongly on the surface treatment of the sample cell.