Full-order Mueller matrix polarimeter using liquid-crystal phase retarders and active illumination

2003 ◽  
Author(s):  
David C. Dayton ◽  
Brian G. Hoover ◽  
John D. Gonglewski
Keyword(s):  
Liquid Crystal ◽  
Mueller Matrix ◽  
Crystal Phase ◽  
Liquid Crystal Phase ◽  
Active Illumination ◽  
Phase Retarders

scholarly journals Fast Method for Liquid Crystal Cell Spatial Variations Estimation Based on Modeling the Spectral Transmission

Sensors ◽  
2019 ◽  
Vol 19 (18) ◽  
pp. 3874 ◽  
Author(s):  
Shauli Shmilovich ◽  
Liat Revah ◽  
Yaniv Oiknine ◽  
Isaac August ◽  
Ibrahim Abdulhalim ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Cell ◽  
Spatial Variations ◽  
Crystal Phase ◽  
Fast Method ◽  
Spectral Transmission ◽  
Liquid Crystal Phase ◽  
Simple Method ◽  
Crystal Cell ◽  
Phase Retarders

Liquid crystal phase retarders are utilized by photonic devices and imaging systems for various applications, such as tunable filtering, light modulation, polarimetric imaging, remote sensing and quality inspection. Due to technical difficulties in the manufacturing process, these phase retarders may suffer from spatial non-uniformities, which degrade the performance of the systems. These non-uniformities can be characterized by measuring the spectral transmission at each voltage and each point on the liquid crystal cell, which is time consuming. In this work, we present a new fast and simple method for measuring and computationally estimating the spatial variations of a liquid crystal phase retarder with planar alignment. The method is based on measuring the spectral transmission of the phase retarder at several spatial locations and estimating it at others. The experimental results show that the method provides an accurate spatial description of the phase retarder and can be employed for calibrating relevant systems.

scholarly journals Cover Picture: Structure of the B4 Liquid Crystal Phase near a Glass Surface (ChemPhysChem 1/2012)

ChemPhysChem ◽  
2012 ◽  
Vol 13 (1) ◽  
pp. 1-1 ◽  
Author(s):  
Dong Chen ◽  
Michael-Scott Heberling ◽  
Michi Nakata ◽  
Loren E. Hough ◽  
Joseph E. Maclennan ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Glass Surface ◽  
Crystal Phase ◽  
Liquid Crystal Phase

New amphiphilic materials showing the lyotropic analogue to the thermotropic smectic C* liquid crystal phase

2017 ◽  
Vol 5 (30) ◽  
pp. 7452-7457 ◽  
Author(s):  
Marc D. Harjung ◽  
Christopher P. J. Schubert ◽  
Friederike Knecht ◽  
Jan H. Porada ◽  
Robert P. Lemieux ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Crystal Phase ◽  
Liquid Crystal Phase ◽  
Smectic C

Two new examples of the lyotropic analog to the thermotropic ferroelectric SmC* phase were found recently.

Space Radiation Environment Testing of Liquid Crystal Phase Shifter Devices

2016 ◽  
Vol 15 ◽  
pp. 1923-1926 ◽  
Author(s):  
Christopher D. Woehrle ◽  
Derek T. Doyle ◽  
Steven A. Lane ◽  
Christos G. Christodoulou
Keyword(s):  
Liquid Crystal ◽  
Phase Shifter ◽  
Space Radiation ◽  
Crystal Phase ◽  
Radiation Environment ◽  
Liquid Crystal Phase ◽  
Space Radiation Environment

Orientational and positional order in a tilted hexatic liquid-crystal phase

1986 ◽  
Vol 57 (1) ◽  
pp. 98-101 ◽  
Author(s):  
J. D. Brock ◽  
A. Aharony ◽  
R. J. Birgeneau ◽  
K. W. Evans-Lutterodt ◽  
J. D. Litster ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Crystal Phase ◽  
Liquid Crystal Phase
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