scholarly journals Laser-directed hierarchical assembly of liquid crystal defects and control of optical phase singularities

2012 ◽  
Vol 2 (1) ◽  
Author(s):  
Paul J. Ackerman ◽  
Zhiyuan Qi ◽  
Yiheng Lin ◽  
Christopher W. Twombly ◽  
Mauricio J. Laviada ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Crystal Defects ◽  
Optical Phase ◽  
Hierarchical Assembly ◽  
Phase Singularities ◽  
And Control

Hierarchical assembly of smectic liquid crystal defects at undulated interfaces

Soft Matter ◽  
2020 ◽  
Vol 16 (36) ◽  
pp. 8352-8358
Author(s):  
Ryan S. Preusse ◽  
Elizabeth R. George ◽  
S. Ali Aghvami ◽  
Timothy M. Otchy ◽  
Mohamed Amine Gharbi
Keyword(s):  
Liquid Crystal ◽  
Surface Topography ◽  
Crystal Defects ◽  
Hierarchical Assembly ◽  
Smectic A ◽  
Smectic Liquid Crystal ◽  
The Creation ◽  
Effect Of Surface

Effect of surface topography in the creation of disclinations and the assembly of defects in a smectic A liquid crystal.

scholarly journals External pressure induced liquid crystal defects for optical vortex generation

AIP Advances ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 065219
Author(s):  
L. K. Migara ◽  
Heesu Lee ◽  
Cheon-Myeong Lee ◽  
Keumcheol Kwak ◽  
Doyeon Lee ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Optical Vortex ◽  
External Pressure ◽  
Crystal Defects ◽  
Vortex Generation

Numerical Simulation of High Accuracy and High Efficiency Beam Steering Based on Liquid Crystal Optical Phase Array

2014 ◽  
Vol 41 (2) ◽  
pp. 0202002
Author(s):  
师宇斌 Shi Yubin ◽  
马浩统 Ma Haotong ◽  
马阎星 Ma Yanxing ◽  
吕洋 Lü Yang ◽  
司磊 Si Lei
Keyword(s):  
Numerical Simulation ◽  
Liquid Crystal ◽  
High Efficiency ◽  
Beam Steering ◽  
High Accuracy ◽  
Phase Array ◽  
Optical Phase

Tunable topographical cellulose matrices for electro-optical liquid crystal cells

2006 ◽  
Vol 14 (4) ◽  
Author(s):  
I. Costa ◽  
P. Almeida ◽  
D. Filip ◽  
J. Figueirinhas ◽  
M. Godinho
Keyword(s):  
Thin Films ◽  
Liquid Crystal ◽  
Liquid Crystalline ◽  
Cellulose Derivatives ◽  
Free Standing ◽  
Casting Technique ◽  
Solvent Vapour ◽  
Preparation Conditions ◽  
And Control ◽  
Crystal Cells

AbstractIn this work we have used acetoxypropylcellulose (APC) to produce free standing solid films (∼60 μm) that were used for assembling electro-optical devices. Thin films were obtained from concentrated lyotropic solutions of cellulose derivatives. Induced by the cast and shearing preparation conditions wrinkles and band textures can be observed in their free-surface plane. In order to eliminate and control these textures we used a process similar to that introducted in literature [1] which consists of storing the films in the same solvent-vapour atmosphere as the solution system. Lyotropic APC liquid crystalline solutions in dymethylacetamide (DMA) with crosslinker were prepared, thin films were obtained by using a shear/casting technique and stored in the solvent-vapour atmosphere until a planar structure was achieved. The dried crosslinked films were analyzed by optical polarised microscopy (POM) and scanning electron microscopy (SEM). The films with different topographies were used to produce optical cells composed by the cellulose derivative film covered on both free surfaces by a layer of the nematic liquid crystal E7 and placed between two transparent conducting substrates. The electro-optical properties of these cells were obtained.

Optical phase conjugation by microwatt power of reference waves via liquid crystal light valve

1981 ◽  
Vol 38 (1) ◽  
pp. 67-70 ◽  
Author(s):  
O.V. Garibyan ◽  
I.N. Kompanets ◽  
A.V. Parfyonov ◽  
N.F. Pilipetsky ◽  
V.V. Shkunov ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Phase Conjugation ◽  
Optical Phase Conjugation ◽  
Optical Phase ◽  
Light Valve

Control of topological liquid crystal defects in microstructured cells

2006 ◽  
Author(s):  
G. D'Alessandro ◽  
G.V. Prakash ◽  
M. Kaczmarek ◽  
A. Dyadyusha ◽  
J.J. Baumberg
Keyword(s):  
Liquid Crystal ◽  
Crystal Defects
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