P‐106: Guest‐Host Liquid Crystal Devices Utilizing Dichroic Dye and Its Application

2019 ◽  
Vol 50 (1) ◽  
pp. 1652-1655
Author(s):  
Hong Gwon Lee ◽  
Chang Suk Lee ◽  
Sung Guk Lee ◽  
Yun Jin Heo ◽  
Young Jin Lim ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Devices ◽  
Dichroic Dye

scholarly journals Polymer Dispersed Cholesteric Liquid Crystals With a Toroidal Director Configuration under an Electric Field

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 732
Author(s):  
Anna P. Gardymova ◽  
Mikhail N. Krakhalev ◽  
Victor Ya. Zyryanov ◽  
Alexandra A. Gruzdenko ◽  
Andrey A. Alekseev ◽  
...  
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Electric Field ◽  
Point Defects ◽  
Structural Response ◽  
Optical Filters ◽  
Response Curves ◽  
Polymer Dispersed Liquid Crystal ◽  
Dichroic Dye ◽  
Polymer Dispersed

The electro-optical properties of polymer dispersed liquid crystal (PDLC) films are highly dependent on the features of the contained liquid crystal (LC) droplets. Cholesteric LC droplets with homeotropic boundaries can form several topologically different orientational structures, including ones with single and more point defects, layer-like, and axisymmetric twisted toroidal structures. These structures are very sensitive to an applied electric field. In this work, we have demonstrated experimentally and by computer simulations that twisted toroidal droplets reveal strong structural response to the electric field. In turn, this leads to vivid changes in the optical texture in crossed polarizers. The response of droplets of different sizes were found to be equivalent in terms of dimensionless parameters. In addition, the explanation of this phenomenon showed a comparison of theoretical and experimental structural response curves aids to determine the shape of the droplet. Finally, we demonstrated that the addition of a dichroic dye allows such films to be used as optical filters with adjustable color even without polarizers.

scholarly journals Liquid Crystal Devices for Beam Steering Applications

Micromachines ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 247
Author(s):  
Rowan Morris ◽  
Cliff Jones ◽  
Mamatha Nagaraj
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Adaptive Optics ◽  
Beam Steering ◽  
Optical Components ◽  
Advantages And Disadvantages ◽  
Liquid Crystal Devices

Liquid crystals are valuable materials for applications in beam steering devices. In this paper, an overview of the use of liquid crystals in the field of adaptive optics specifically for beam steering and lensing devices is presented. The paper introduces the properties of liquid crystals that have made them useful in this field followed by a more detailed discussion of specific liquid crystal devices that act as switchable optical components of refractive and diffractive types. The relative advantages and disadvantages of the different devices and techniques are summarised.

Electrooptical Responses of Carbon Nanotube-Doped Liquid Crystal Devices

2005 ◽  
Vol 44 (11) ◽  
pp. 8077-8081 ◽  
Author(s):  
Chi-Yen Huang ◽  
Chao-Yuan Hu ◽  
Hung-Chih Pan ◽  
Kuang-Yao Lo
Keyword(s):  
Liquid Crystal ◽  
Carbon Nanotube ◽  
Liquid Crystal Devices

Effects of the dispersion of zirconium dioxide nanoparticles on high performance electro-optic properties in liquid crystal devices

2011 ◽  
Vol 38 (7) ◽  
pp. 871-875 ◽  
Author(s):  
Hyung-Jun Kim ◽  
Young-Gu Kang ◽  
Hong-Gyu Park ◽  
Kang-Min Lee ◽  
Seok Yang ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Zirconium Dioxide ◽  
High Performance ◽  
Liquid Crystal Devices ◽  
Electro Optic ◽  
Zirconium Dioxide Nanoparticles

Flexible ferroelectric liquid-crystal devices containing fine polymer fibers

2002 ◽  
Vol 10 (1) ◽  
pp. 95 ◽  
Author(s):  
Hideo Fujikake ◽  
Takeshi Murashige ◽  
Hiroto Sato ◽  
Yoshiki Iino ◽  
Masahiro Kawakita ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Polymer Fibers ◽  
Ferroelectric Liquid Crystal ◽  
Liquid Crystal Devices

Active Liquid Crystal Devices Incorporating Liquid Crystal Polymer Thin Film Waveplates

1999 ◽  
Vol 38 (Part 1, No. 1A) ◽  
pp. 95-100 ◽  
Author(s):  
Yoriko Morita ◽  
Jay E. Stockley ◽  
Kristina M. Johnson ◽  
Eckhard Hanelt ◽  
Frank Sandmeyer
Keyword(s):  
Thin Film ◽  
Liquid Crystal ◽  
Liquid Crystal Polymer ◽  
Polymer Thin Film ◽  
Liquid Crystal Devices ◽  
Crystal Polymer ◽  
Active Liquid

Photo-aligned liquid crystal devices for high-peak-power laser applications

2012 ◽  
Author(s):  
K. L. Marshall ◽  
C. Dorrer ◽  
M. Vargas ◽  
A. Gnolek ◽  
M. Statt ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Peak Power ◽  
High Peak ◽  
High Peak Power ◽  
Power Laser ◽  
Laser Applications ◽  
Liquid Crystal Devices
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