Dynamic Mechanism of Fast Switching in Light Valve Using Liquid Crystal

1985 ◽  
Vol 24 (Part 1, No. 8) ◽  
pp. 905-908 ◽  
Author(s):  
Akihiko Sugimura ◽  
Takao Kawamura
Keyword(s):  
Liquid Crystal ◽  
Dynamic Mechanism ◽  
Fast Switching ◽  
Light Valve

scholarly journals Holographic Polymer-Dispersed Liquid Crystals: Materials, Formation, and Applications

2008 ◽  
Vol 2008 ◽  
pp. 1-52 ◽  
Author(s):  
Y. J. Liu ◽  
X. W. Sun
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Refractive Index Profile ◽  
Single Step ◽  
Fast Switching ◽  
Polymer Dispersed Liquid Crystal ◽  
Current State ◽  
Index Matching ◽  
Polymer Dispersed ◽  
Materials Used

By combining polymer-dispersed liquid crystal (PDLC) and holography, holographic PDLC (H-PDLC) has emerged as a new composite material for switchable or tunable optical devices. Generally, H-PDLC structures are created in a liquid crystal cell filled with polymer-dispersed liquid crystal materials by recording the interference pattern generated by two or more coherent laser beams which is a fast and single-step fabrication. With a relatively ideal phase separation between liquid crystals and polymers, periodic refractive index profile is formed in the cell and thus light can be diffracted. Under a suitable electric field, the light diffraction behavior disappears due to the index matching between liquid crystals and polymers. H-PDLCs show a fast switching time due to the small size of the liquid crystal droplets. So far, H-PDLCs have been applied in many promising applications in photonics, such as flat panel displays, switchable gratings, switchable lasers, switchable microlenses, and switchable photonic crystals. In this paper, we review the current state-of-the-art of H-PDLCs including the materials used to date, the grating formation dynamics and simulations, the optimization of electro-optical properties, the photonic applications, and the issues existed in H-PDLCs.

scholarly journals Nonlinear optics and liquid crystal light valve for laser beam control

2008 ◽  
Vol 139 ◽  
pp. 012010
Author(s):  
Jean Pierre Huignard ◽  
Arnaud Brignon ◽  
Bastien Steinhausser
Keyword(s):  
Liquid Crystal ◽  
Nonlinear Optics ◽  
Laser Beam ◽  
Beam Control ◽  
Light Valve

Ferroelectric Liquid Crystal Light Valve Using SiO2 / A-Si:H Photodiode

1991 ◽  
Vol 219 ◽  
Author(s):  
T. Horikawa ◽  
S. Tahata ◽  
S. Kaho ◽  
T. Masumi ◽  
N. Mikami ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Dark Conductivity ◽  
Ferroelectric Liquid Crystal ◽  
Two Dimensional ◽  
Metal Insulator ◽  
Resolution Capability ◽  
New Type ◽  
Light Valve ◽  
Mis Diode ◽  
High Photosensitivity

ABSTRACTA new type of ferroelectric liquid crystal light valve (FLCLV) is presented. The design of the FLCLV is based upon the linear equivalent circuit analyses. A photosensor in the FLCLV consists of a metal-insulator-semiconductor (MIS) photodiode. A-Si:H doped with boron and nitrogen [a-Si:(:N:B)] is used in the MIS diode. The a-Si:H(:B:N) film has a dark-conductivity of less than 1×1012 S/cm and a high photosensitivity.Consequently, the writing characteristics of the FLCLV for a two dimensional (2D) image are evaluated. Using writing light of 630 nm and 1 mW/cm2, a high resolution capability of 120∼140 1p/mm is obtained.

Chiral-induced self-assembly sphere phase liquid crystal with fast switching time

2014 ◽  
Vol 104 (9) ◽  
pp. 091116 ◽  
Author(s):  
Ji-Liang Zhu ◽  
Shui-Bin Ni ◽  
Chao Ping Chen ◽  
Dong-Qing Wu ◽  
Xiao-Long Song ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Self Assembly ◽  
Switching Time ◽  
Fast Switching ◽  
Phase Liquid

Soliton gating and switching in liquid crystal light valve

2010 ◽  
Vol 96 (7) ◽  
pp. 071104 ◽  
Author(s):  
Armando Piccardi ◽  
Alessandro Alberucci ◽  
Umberto Bortolozzo ◽  
Stefania Residori ◽  
Gaetano Assanto
Keyword(s):  
Liquid Crystal ◽  
Light Valve

Full Color Liquid Crystal Light Valve Projector

1985 ◽  
Author(s):  
Ronald S. Gold ◽  
Arno G. Ledebuhr
Keyword(s):  
Liquid Crystal ◽  
Full Color ◽  
Light Valve
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