Transmissive spatial light modulators with high figure-of-merit liquid crystals for foveated imaging applications

2006 ◽  
Author(s):  
Jamie Harriman ◽  
Sebastian Gauza ◽  
Shin-Tson Wu ◽  
David Wick ◽  
Brett Bagwell ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Figure Of Merit ◽  
Spatial Light Modulators ◽  
Light Modulators ◽  
Foveated Imaging ◽  
High Figure

High figure‐of‐merit nematic mixtures based on totally unsaturated isothiocyanate liquid crystals

2006 ◽  
Vol 33 (6) ◽  
pp. 705-710 ◽  
Author(s):  
Sebastian Gauza ◽  
Chien‐Hui Wen ◽  
Benjamin Wu ◽  
Shin‐Tson Wu ◽  
Ania Spadlo ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Figure Of Merit ◽  
High Figure

scholarly journals Resolution in optically addressed spatial light modulators based on dye-doped liquid crystals

2006 ◽  
Vol 45 (35) ◽  
pp. 8889 ◽  
Author(s):  
Oksana Trushkevych ◽  
Neil Collings ◽  
William A. Crossland ◽  
Timothy D. Wilkinson
Keyword(s):  
Liquid Crystals ◽  
Spatial Light Modulators ◽  
Light Modulators

Deformed Helix Ferroelectric Liquid Crystals with Large Tilt Angles in Optically Addressed Spatial Light Modulators for Dynamical Holography Applications

1997 ◽  
Vol 488 ◽  
Author(s):  
L. A. Beresnev ◽  
W. Haase ◽  
A. P. Onokhov ◽  
W. Dultz ◽  
M. V. Isaev ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Liquid Crystals ◽  
Amorphous Silicon ◽  
Diffraction Efficiency ◽  
Optical Axis ◽  
Polymeric Films ◽  
Spatial Light Modulators ◽  
Ferroelectric Liquid Crystals ◽  
Holographic Image ◽  
Light Modulators

AbstractOptically addressed spatial light modulators (OASLMs) based on deformed helix ferroelectric liquid crystals (DHFLC) with high tilt angles on order of 40° and helical pitches less than 0.2μm were developed. The diffraction efficiency reached the order of 20%. The light induced deviation of the optical axis of the DHFLC layer was measured in sandwich structures consisting of photoconductors and liquid crystals. The photoelectric parameters of photoconductive amorphous silicon carbide a-SiC:H and a photoconductive polymeric films were measured with and without light blocking and reflecting layers. The application of the developed OASLMs in a holographic image corrector was demonstrated.

OPTICAL NONLINEARITY IN AZO-ANTHRAQUINONE DOPED LIQUID CRYSTALS

2006 ◽  
Vol 15 (02) ◽  
pp. 265-273 ◽  
Author(s):  
OKSANA TRUSHKEVYCH ◽  
NEIL COLLINGS ◽  
WILLIAM A. CROSSLAND ◽  
TIMOTHY D. WILKINSON
Keyword(s):  
Liquid Crystals ◽  
Laser Light ◽  
Single Layer ◽  
Optical Nonlinearity ◽  
Spatial Light Modulators ◽  
Methyl Red ◽  
Power Laser ◽  
Light Modulators ◽  
Device Applications ◽  
Interesting Alternative

The optical nonlinearity in liquid crystals doped with 2,5 azo-substituted anthraquinone (ASAQ) dye is studied. Dynamic holographic grating formation is observed under conditions of low power laser light and no external fields. This new dye is an interesting alternative to methyl red (MR) dopant for liquid crystals (LCs) as materials for single-layer optically addressed spatial light modulators (OASLMs). The thickness and concentration dependence are explored in ASAQ-doped LCs. Stability and suitability for device applications are researched. In MR-doped LC systems the performance of the devices deteriorates quickly, while ASAQ devices are remarkably stable.

Spatial light modulators with super twisted nematic liquid crystals

1991 ◽  
Vol 16 (10) ◽  
pp. 764 ◽  
Author(s):  
Katsuhiko Hirabayashi ◽  
Masayoshi Ohno ◽  
Seiji Fukushima ◽  
Takashi Kurokawa
Keyword(s):  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Spatial Light Modulators ◽  
Light Modulators ◽  
Twisted Nematic
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