Photochromic and fluorescent LC gels based on a bent-shaped azobenzene-containing gelator

RSC Advances ◽  
2015 ◽  
Vol 5 (70) ◽  
pp. 56891-56895 ◽  
Author(s):  
Alexey Bobrovsky ◽  
Valery Shibaev ◽  
Věra Hamplová ◽  
Vladimíra Novotna ◽  
Miroslav Kašpar
Keyword(s):  
Liquid Crystals ◽  
Liquid Crystalline ◽  
Molar Mass ◽  
Nematic Liquid Crystals

Photochromic liquid crystalline gels based on a low-molar-mass azobenzene-containing bent-shaped gelator and nematic liquid crystals were prepared.

Spontaneous homeotropic alignment of nematic liquid crystals induced by a double-armed side chain liquid crystalline polymethacrylate

2017 ◽  
Vol 656 (1) ◽  
pp. 96-104 ◽  
Author(s):  
Osamu Haba ◽  
Wataru Matsuno ◽  
Nao Nakamura ◽  
Hiroshi Awano ◽  
Tatsuhiro Takahashi ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Liquid Crystalline ◽  
Nematic Liquid Crystals ◽  
Side Chain ◽  
Homeotropic Alignment

Sign-alternating optical reorientation in nematic liquid crystals with low-molar-mass and polymeric absorbing bis-azobenzene dopants

2021 ◽  
pp. 117141
Author(s):  
Ivan Budagovsky ◽  
Aleksey Kuznetsov ◽  
Sergey Shvetsov ◽  
Mikhail Smayev ◽  
Alexander Zolot'ko ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Molar Mass ◽  
Nematic Liquid Crystals

NONLINEAR AND ELECTRO-OPTICS OF NANO-DISPERSED NEMATIC LIQUID CRYSTALS WITH TUNABLE NEGATIVE-, ZERO-, AND POSITIVE INDICES

2007 ◽  
Vol 16 (03) ◽  
pp. 381-399 ◽  
Author(s):  
I. C. KHOO ◽  
A. DIAZ ◽  
D. KWON ◽  
D. H. WERNER ◽  
J. LIOU ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Liquid Crystalline ◽  
Response Times ◽  
Nematic Liquid Crystals ◽  
Optical Nonlinearity ◽  
Frequency Selective Surfaces ◽  
Optical Nonlinearities ◽  
Crystal Matrix ◽  
Liquid Crystal Matrix ◽  
Positive Index

We present a review of recent progress in the studies of the nonlinear- and electro-optics of liquid crystals, particularly in their meta-material forms. An analytical expression for the "ultimate" optical nonlinearity of nematic liquid crystals is obtained, and several routes to realizing such optical nonlinearities are discussed. We also describe two approaches for realizing tunable or reconfigurable negative-zero-positive index materials: (1) planar nano-structured frequency selective surfaces [FSS] containing nematic liquid crystals; (2) core-shell nano-spheres randomly distributed in bulk nematic liquid crystal matrix. Such metamaterials can be designed for applications in the visible-infrared, as well as Terahertz and microwave regimes. These liquid crystalline meta-materials are capable of supra-nonlinearities characterized by refractive index changing coefficients of over 1 cm2/watt and microseconds response times.

scholarly journals Engineering the anchoring behavior of nematic liquid crystals on a solid surface by varying the density of liquid crystalline polymer brushes

Soft Matter ◽  
2018 ◽  
Vol 14 (37) ◽  
pp. 7569-7577 ◽  
Author(s):  
Xiao Li ◽  
Takuya Yanagimachi ◽  
Camille Bishop ◽  
Coleman Smith ◽  
Moshe Dolejsi ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Solid Surface ◽  
Polymer Brushes ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Nematic Liquid Crystals ◽  
Crystalline Polymer

Using liquid crystalline polymer brushes to continuously control the anchoring transition of 5CB by simply varying the brush density.

Sign in / Sign up

Export Citation Format

Share Document