Characteristics of the amplitude modulation of light as a result of the Freedericksz transition in a liquid-crystal cell with a dichroic dye

1994 ◽  
Vol 24 (4) ◽  
pp. 315-317
Author(s):  
V I Vashchuk ◽  
K F Gorot' ◽  
G Yu Kozak ◽  
S F Lyuksyutov ◽  
E A Tikhonov
Keyword(s):  
Liquid Crystal ◽  
Amplitude Modulation ◽  
Liquid Crystal Cell ◽  
Freedericksz Transition ◽  
Crystal Cell ◽  
Dichroic Dye ◽  
Fréedericksz Transition

scholarly journals Freedericksz Transition in Hybrid Aligned Nematic Liquid Crystal Cell

1984 ◽  
Vol 39 (6) ◽  
pp. 575-583 ◽  
Author(s):  
G. Barbero
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Polarization Plane ◽  
Liquid Crystal Cell ◽  
General Situation ◽  
Threshold Field ◽  
Freedericksz Transition ◽  
Crystal Cell ◽  
Fréedericksz Transition ◽  
The One

We analyse the Freedericksz transition and the flexoelectric deformation in a hybrid aligned nematic liquid crystal cell. We show that the threshold field for the first effect is smaller than that for a homogeneous sample. The calculations are made in the one constant approximation and in the general situation. Furthermore, in the adiabatic approximation we calculated the polarization plane rotation vs. the applied magnetic field, in the one constant approximation. A similar calculation is made for the flexoelectric effect. In particular we show that it is possible to extend the analysis to a situation of weak anchoring energy.

scholarly journals Bifurcations analysis of the twist-Fréedericksz transition in a nematic liquid-crystal cell with pre-twist boundary conditions: the asymmetric case

2016 ◽  
Vol 28 (2) ◽  
pp. 243-260 ◽  
Author(s):  
FERNANDO P. DA COSTA ◽  
MARIA ISABEL MÉNDEZ ◽  
JOÃO T. PINTO
Keyword(s):  
Liquid Crystal ◽  
Boundary Conditions ◽  
Nematic Liquid Crystal ◽  
Dirichlet Condition ◽  
Liquid Crystal Cell ◽  
Phase Plane Analysis ◽  
Twist Boundary ◽  
Freedericksz Transition ◽  
Crystal Cell ◽  
Fréedericksz Transition

In the paper, Bifurcation analysis of the twist-Fréedericksz transition in a nematic liquid-crystal cell with pre-twist boundary conditions (2009 Eur. J. Appl. Math.20, 269–287) by da Costa et al. the twist-Fréedericksz transition in a nematic liquid-crystal one-dimensional cell of lenght L was studied, imposing an antisymmetric net twist Dirichlet condition at the cell boundaries. In the present paper, we extend that study to the more general case of net twist Dirichlet conditions without any kind of symmetry restrictions. We use phase-plane analysis tools and appropriately defined time maps to obtain the bifurcation diagrams of the model when L is the bifurcation parameter, and related these diagrams with the one in the antisymmetric situation. The stability of the bifurcating solutions is investigated by applying the method of Maginu (1978 J. Math. Anal. Appl.63, 224–243).

Studies on Optical Performances of Dichroic Dye‐doped Nematic Liquid Crystal Cell with a Direct Lamination Reflective Polarizer

2020 ◽  
Vol 51 (S1) ◽  
pp. 172-175
Author(s):  
Xiaojuan Wu ◽  
Zhiqiang Zhao ◽  
Jiaxing Wang ◽  
Hongliang Yuan ◽  
Jian Wang ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Liquid Crystal Cell ◽  
Crystal Cell ◽  
Dichroic Dye

Dichroic Azo Dyes for Guest-Host Liquid-Crystal Cell

1982 ◽  
Vol 21 (Part 1, No. 1) ◽  
pp. 191-192 ◽  
Author(s):  
Hidehiro Seki ◽  
Chiyoko Shishido ◽  
Shigeo Yasui ◽  
Tatsuo Uchida
Keyword(s):  
Liquid Crystal ◽  
Azo Dyes ◽  
Liquid Crystal Cell ◽  
Crystal Cell
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