Physics of photopolymer-liquid crystal composite holographic gratings

1996 ◽  
Author(s):  
Richard L. Sutherland ◽  
Lalgudi V. Natarajan ◽  
Vincent P. Tondiglia ◽  
Timothy J. Bunning ◽  
W. Wade Adams
Keyword(s):  
Liquid Crystal ◽  
Holographic Gratings ◽  
Crystal Composite

scholarly journals Electrical properties of a liquid crystal dispersed in an electrospun cellulose acetate network

2018 ◽  
Vol 9 ◽  
pp. 155-163 ◽  
Author(s):  
Doina Manaila Maximean ◽  
Octavian Danila ◽  
Pedro L Almeida ◽  
Constantin Paul Ganea
Keyword(s):  
Liquid Crystal ◽  
Cellulose Acetate ◽  
Indium Tin Oxide ◽  
Electric Energy ◽  
Equivalent Model ◽  
Electrical Characteristics ◽  
Impedance Measurements ◽  
Polymer Dispersed Liquid Crystals ◽  
Polymer Dispersed ◽  
Crystal Composite

Electro-optical devices that work in a similar fashion as PDLCs (polymer-dispersed liquid crystals), produced from cellulose acetate (CA) electrospun fibers deposited onto indium tin oxide coated glass and a nematic liquid crystal (E7), were studied. CA and the CA/liquid crystal composite were characterized by multiple investigation techniques, such as polarized optical microscopy, dielectric spectroscopy and impedance measurements. Dielectric constant and electric energy loss were studied as a function of frequency and temperature. The activation energy was evaluated and the relaxation time was obtained by fitting the spectra of the dielectric loss with the Havriliak–Negami functions. To determine the electrical characteristics of the studied samples, impedance measurements results were treated using the Cole–Cole diagram and the three-element equivalent model.

An optically stable and tunable quantum dot nanocrystal-embedded cholesteric liquid crystal composite laser

2014 ◽  
Vol 2 (22) ◽  
pp. 4388-4394 ◽  
Author(s):  
Lin-Jer Chen ◽  
Jia-De Lin ◽  
Chia-Rong Lee
Keyword(s):  
Liquid Crystal ◽  
Quantum Dot ◽  
Cholesteric Liquid Crystal ◽  
Azobenzene Moiety ◽  
Optical Stability ◽  
Composite Laser ◽  
Crystal Composite

This work demonstrates the first quantum-dot-embedded cholesteric liquid crystal composite laser with an added chiral-azobenzene moiety which possesses optical stability and reversible tunability.

Optical behavior of chiral thin film-liquid crystal composite materials

2002 ◽  
Author(s):  
Michael J. Brett ◽  
Jeremy C. Sit ◽  
Scott R. Kennedy ◽  
Ken D. Harris ◽  
Dick J. Broer
Keyword(s):  
Thin Film ◽  
Liquid Crystal ◽  
Composite Materials ◽  
Optical Behavior ◽  
Crystal Composite

A switchable optical diffuser based on a polymer/nematic liquid crystal composite film with transient polymer balls-networks microstructure

2019 ◽  
Vol 46 (15) ◽  
pp. 2213-2222 ◽  
Author(s):  
Le Zhou ◽  
Cheng Han ◽  
Mohsin Hassan Saeed ◽  
Cuihong Zhang ◽  
Lanying Zhang
Keyword(s):  
Liquid Crystal ◽  
Composite Film ◽  
Nematic Liquid Crystal ◽  
Crystal Composite ◽  
Optical Diffuser
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