scholarly journals Fast Ferroelectric Liquid Crystal Based Optical Switch: Simulation and Experiments

Crystals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 388 ◽  
Author(s):  
Sithara P. Sreenilayam ◽  
Dermot Brabazon ◽  
Yuri P. Panarin
Keyword(s):  
Experimental Investigation ◽  
Liquid Crystal ◽  
Response Time ◽  
Theoretical Result ◽  
Optical Switch ◽  
Fast Response ◽  
Ferroelectric Liquid Crystal ◽  
Performance Parameters ◽  
Exact Match ◽  
Significant Performance

The present work explains simulation and experimental investigation of the most significant performance parameters of a ferroelectric liquid crystal (FLC) optical switch. The measurements were carried out with commercially available FLC mixture (θ = 22.5°), having a very fast response time within the range of 1–10 μs. The best achieved cross talk was ~19 dB, which is an exact match with the theoretical result.

The Performance of Air-Air Ejectors With Triangular Tabbed Driving Nozzles

2006 ◽  
Author(s):  
S. F. McBean ◽  
A. M. Birk
Keyword(s):  
Experimental Investigation ◽  
System Performance ◽  
Experimental Testing ◽  
Back Pressure ◽  
Tube Diameter ◽  
Performance Parameters ◽  
Mixing Performance ◽  
Performance Improvements ◽  
Significant Performance ◽  
Ejector System

This paper describes an experimental investigation into the effects of geometrical variations on ejector system performance when the driving nozzle includes delta mixing tabs. Mixing tabs have been shown to provide good mixing performance with comparable back-pressure penalties to other types of enhanced mixing nozzles. The performance parameters of most interest are pumping, mixing, and back-pressure. Geometric parameters studied include standoff distance, mixing-tube diameter, and tab angle. Experimental testing showed significant performance improvements in mixing and pumping with a decrease in tab angle. Maximum mixing was found to occur with tab angles positioned at 120°. Exceptional mixing was also observed with increased standoff. Back-pressure was shown to increase with increasing standoff and decreasing tab angle, but was not affected by mixing-tube diameter. In addition, a zone of recirculation was identified at the entrance to the mixing-tube. This zone is thought to have an influence on ejector performance.

scholarly journals Fast response time in liquid crystal cells doped with low concentrations of reactive mesogen via photopolymerization at low temperature

2017 ◽  
Vol 7 (8) ◽  
pp. 2740 ◽  
Author(s):  
Chun-Yu Chien ◽  
Luo-Yi Wu ◽  
Chia-Rong Sheu ◽  
Che-Ju Hsu ◽  
Chi-Yen Huang ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Low Temperature ◽  
Response Time ◽  
Fast Response ◽  
Fast Response Time ◽  
Low Concentrations ◽  
Crystal Cells

scholarly journals Fast-response and high-efficiency optical switch based on dual-frequency liquid crystal polarization grating

2016 ◽  
Vol 6 (2) ◽  
pp. 597 ◽  
Author(s):  
Wei Duan ◽  
Peng Chen ◽  
Bing-Yan Wei ◽  
Shi-Jun Ge ◽  
Xiao Liang ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
High Efficiency ◽  
Optical Switch ◽  
Fast Response ◽  
Dual Frequency ◽  
Polarization Grating

Four-domain twisted nematic structure with enhanced liquid crystal alignment stability and fast response time

2012 ◽  
Vol 112 (1) ◽  
pp. 014512 ◽  
Author(s):  
Yeon-Kyu Moon ◽  
You-Jin Lee ◽  
Chang-Jae Yu ◽  
Jeong Uk Heo ◽  
Jae-Hong Park ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Response Time ◽  
Fast Response ◽  
Fast Response Time ◽  
Liquid Crystal Alignment ◽  
Twisted Nematic ◽  
Crystal Alignment

P-189: Fast Response Transflective Display Using a Tight Pitch Ferroelectric Liquid Crystal in a Single Gap Configuration

2008 ◽  
Vol 39 (1) ◽  
pp. 1916
Author(s):  
Dong-Woo Kim ◽  
Eunje Jang ◽  
Yong-Woon Lim ◽  
Sin-Doo Lee ◽  
Chang-Jae Yu
Keyword(s):  
Liquid Crystal ◽  
Fast Response ◽  
Ferroelectric Liquid Crystal

scholarly journals In‐plane switching liquid crystal cell with a mixed bent electrode structure for fast response time

2008 ◽  
Vol 9 (3) ◽  
pp. 12-15 ◽  
Author(s):  
Tae Woon Ko ◽  
Jae Chang Kim ◽  
Joun‐Ho Lee ◽  
Hyun Chul Choi ◽  
Seung‐Hoon Ji ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Response Time ◽  
Fast Response ◽  
Liquid Crystal Cell ◽  
Electrode Structure ◽  
Fast Response Time ◽  
Crystal Cell

P-94: Fast Response Time of Liquid Crystal using a Nanofiber and Polyimide Alignment Mixture

2015 ◽  
Vol 46 (1) ◽  
pp. 1511-1513
Author(s):  
Hyungmin Kim ◽  
Hyojin Lee ◽  
Seungbin Yang ◽  
Jiyong Hwang ◽  
Ji-Hoon Lee ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Response Time ◽  
Fast Response ◽  
Fast Response Time
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