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polymer-dispersed liquid crystal

Tunable grating-assisted surface plasmon resonance by use of nano-polymer dispersed liquid crystal electro-optical material

Tunable grating-assisted surface plasmon resonance by use of nano-polymer dispersed liquid crystal electro-optical material

... containing polymer only ( ...by liquid crystal droplets (in addition, as a reflection grat- ing is used, the incident light undergoes a double-pass in the ...

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Irradiation polymerization of polypropylenegly coldiacrylates/Liquid crystal e7 systems

Irradiation polymerization of polypropylenegly coldiacrylates/Liquid crystal e7 systems

... the liquid behavior remains an undesired ...isotropic liquid or nematic LC confined in micrometer-sized cavities within a ...”polymer dispersed liquid ...

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1.55-µm optically pumped tunable VCSEL based on a nano-polymer dispersive liquid crystal phase modulator

1.55-µm optically pumped tunable VCSEL based on a nano-polymer dispersive liquid crystal phase modulator

... VCSEL, Polymer Dispersed Liquid Crystal, Optical pumping, Distributed Bragg Reflector, Electro- optical modulation ...a liquid crystal as an electro-optic material placed inside ...

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Soluble fullerene derivative in liquid crystal: polymer composites and their impact on photorefractive grating efficiency and resolution

Soluble fullerene derivative in liquid crystal: polymer composites and their impact on photorefractive grating efficiency and resolution

... in polymer dispersed liquid crystals (PDLC) [ 9 , 11 ] whereas, later, mesogenic polymer was proposed [ 13 – 15 ], mak- ing samples transparent and requiring lower applied ...LC polymer ...

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Gold nanoparticle self-assembly moderated by a cholesteric liquid crystal

Gold nanoparticle self-assembly moderated by a cholesteric liquid crystal

... uid crystal film, most of the needles are still covered by CLC ...originally dispersed in bad solvants for liquid crystals, like water ...PVP polymer, studied by Ayeb et ...the liquid ...

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Unexpected giant elasticity in side-chain liquid-crystal polymer melts: A new approach for the understanding of shear-induced phase transitions

Unexpected giant elasticity in side-chain liquid-crystal polymer melts: A new approach for the understanding of shear-induced phase transitions

... drastic polymer/substrate anchoring conditions is a piezorheometer study, carried out by Martinoty and coworkers who identified also an unexpected elastic response up to 50µm in the isotropic phase in LC-Polymers ...

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Carbon Nanotube-Reinforced Thermotropic Liquid Crystal Polymer Nanocomposites

Carbon Nanotube-Reinforced Thermotropic Liquid Crystal Polymer Nanocomposites

... of polymer nanocomposites ...the polymer matrix still adhered to the fractured tubes matrix in terms of a crack interacting with the nanotube reinforcement significantly increased the mechanical properties ...

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Cholesteric liquid crystal gels with a graded mechanical stress

Cholesteric liquid crystal gels with a graded mechanical stress

... (respectively, larger) than the pitch p 0 of the premixture before photopolymerization. Reflection spectra from both sides of the cell with premixture II after polymerization confirmed that the pitch is indeed smaller ...

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Umbilical defect dynamics in an inhomogeneous nematic liquid crystal layer

Umbilical defect dynamics in an inhomogeneous nematic liquid crystal layer

... the liquid crystal layer in-between crossed polarizers, which spontaneously generates hundreds of umbilical defects in random positions as a result of thermal fluctuations and in- herent inhomogeneities in ...

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Bouncing localized structures in a liquid-crystal light-valve experiment

Bouncing localized structures in a liquid-crystal light-valve experiment

... in liquid crystals [2], cur- rent filaments in gas discharge experiments [3], spots in chemical reactions [4], pulses [5], kinks [6] and localized 2D states [7] in fluid surface waves, oscillons in granular media ...

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Liquid crystal-based tunable photodetector operating in the telecom C-band

Liquid crystal-based tunable photodetector operating in the telecom C-band

... by polymer walls made of an epoxy photosensitive film named ...this polymer is related to its form, a dry resist film of 5 µm in thickness that can be applied directly to the sample surface by a soft ...

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Vortex coronagraphy from self-engineered liquid crystal spin-orbit masks

Vortex coronagraphy from self-engineered liquid crystal spin-orbit masks

... The achromatic features of the vectorial option versus its scalar counterpart [ 10 , 11 ] have eventually led to equip state of the art large instruments such as Keck, Subaru, Hale, Large Binocular Telescope, and Very ...

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Well dispersed fractal aggregates as filler in polymer-silica nanocomposites: long range effects in rheology

Well dispersed fractal aggregates as filler in polymer-silica nanocomposites: long range effects in rheology

... Abstract. We are presenting a new method of processing polystyrene-silica nanocomposites, which results in a very well - defined dispersion of small primary aggregates (assembly of 15 nanoparticles of 10 nm diameter) in ...

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Nanoscale hyperspectral imaging of tilted cholesteric liquid crystal structures

Nanoscale hyperspectral imaging of tilted cholesteric liquid crystal structures

... 4 Conclusions To conclude, we have applied a compact liquid-crystal based hyperspectral imaging sys- tem, both in transmission and reflection, to a CLC with oblique helicity. The analysis of the ...

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Luminescent N-heterocycles based molecular backbone interleaved within LDH host structure and dispersed into polymer

Luminescent N-heterocycles based molecular backbone interleaved within LDH host structure and dispersed into polymer

... composite thin films are prepared by dispersing the LDH-PTPH filler into silicon-type polymer 122.. matrix or poly(ethylene oxide).[r] ...

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UV radiation effects on liquid crystal variable retarders for aerospace applications

UV radiation effects on liquid crystal variable retarders for aerospace applications

... Among the space environmental components, the UV radiation needs special consideration due to the organic nature of the liquid crystal molecules and the alignment layers that consisted of rubbed polyimide ...

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Self-organized arrays of dislocations in thin smectic liquid crystal films

Self-organized arrays of dislocations in thin smectic liquid crystal films

... Smectic liquid crystals can form ordered patterns of defects, in 1D or 2D, depending upon either the symmetry of the un- derlying substrate ? ? , or the film thickness ? ? ? and applied electric fields ? ...the ...

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Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush

Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush

... high crystal surface:liquid ratio, which prevents the development of steep compositional gradients in the surrounding ...low crystal surface:liquid ratio, mean that kinetic effects associated with ...

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Liquid crystal based tunable PIN-photodiodes for detection around 1.55-µm

Liquid crystal based tunable PIN-photodiodes for detection around 1.55-µm

... Tunable photonic devices have been a subject of strong interest for the two last decades, with works mainly focused on tunable optical sources such as VCSEL [1] . Studies have also been conducted on tunable photodiodes ...

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Size-effect of oligomeric cholesteric liquid-crystal microlenses on the optical specifications

Size-effect of oligomeric cholesteric liquid-crystal microlenses on the optical specifications

... *Corresponding author: mitov@cemes.fr Received 21 August 2015; revised 21 September 2015; accepted 21 September 2015; posted 23 September 2015 (Doc. ID 247553); published 13 October 2015 In cholesteric ...

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