Abstract

Infrared microspectroscopy is used to determine the solubility limits of a UV-curable polymer-dispersed liquid crystal (PDLC) system comprised of a low-molecular-weight liquid crystal (E7) and a photocurable monomer (NOA65). The LC is allowed to diffuse into the monomer by the contact method, and then the sample is subjected to curing. The morphology of the system after polymerizaton exhibits several distinct spatial regions, and the associated concentration gradients are measured. At an irradiation temperature of 30 C, the concentration of LC in the matrix is found to be +/- 27 3% , and at a temperature of 100 C, it is 65 +/- 3%.

Light distribution control of layer-structured PDLC fabricated by using micro lens structure and anisotropically diffused UV light

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Opt. Express 27(9) 13416-13429 (2019)

Pinning effect on the phase separation dynamics of thin polymer-dispersed liquid crystals

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Manipulation of the resonance characteristics of random lasers from dye-doped polymer dispersed liquid crystals in capillary tubes

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Controlling liquid crystal pretilt angle with photocurable prepolymer and vertically aligned substrate

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Gradient polymer-disposed liquid crystal single layer of large nematic droplets for modulation of laser light

Georgi B. Hadjichristov, Yordan G. Marinov, and Alexander G. Petrov
Appl. Opt. 50(16) 2326-2333 (2011)