scholarly journals Enhancement of conversion efficiency for an organic semiconductor laser based on a holographic polymer dispersed liquid crystal

2017 ◽  
Vol 66 (24) ◽  
pp. 244204
Author(s):  
Liu Li-Juan ◽  
Kong Xiao-Bo ◽  
Liu Yong-Gang ◽  
Xuan Li
Keyword(s):  
Liquid Crystal ◽  
Semiconductor Laser ◽  
Conversion Efficiency ◽  
Organic Semiconductor ◽  
Polymer Dispersed Liquid Crystal ◽  
Polymer Dispersed ◽  
Organic Semiconductor Laser

High pump efficiency of a second-order distributed feedback laser based on holographic polymer dispersed liquid crystals with preferred liquid crystal molecular orientation

2018 ◽  
Vol 6 (35) ◽  
pp. 9517-9522 ◽  
Author(s):  
Lijuan Liu ◽  
Xiaobo Kong ◽  
Qidong Wang ◽  
Yonggang Liu ◽  
Li Xuan
Keyword(s):  
Liquid Crystal ◽  
Distributed Feedback ◽  
Pump Efficiency ◽  
Transmission Grating ◽  
Polymer Dispersed Liquid Crystal ◽  
Polymer Dispersed Liquid Crystals ◽  
Polymer Dispersed ◽  
High Pump ◽  
Organic Semiconductor Laser

We report on the fabrication and characterization of a surface-emitting distributed feedback (DFB) organic semiconductor laser based on a holographic polymer dispersed liquid crystal (HPDLC) transmission grating.

Broadband Tunable Organic Semiconductor Laser Based on Liquid Crystal/Polymer Grating

2019 ◽  
Vol 46 (4) ◽  
pp. 0401001
Author(s):  
刘丽娟 Liu Lijuan ◽  
孔晓波 Kong Xiaobo ◽  
刘彦庆 Liu Yanqing ◽  
宣丽 Xuan Li
Keyword(s):  
Liquid Crystal ◽  
Semiconductor Laser ◽  
Organic Semiconductor ◽  
Liquid Crystal Polymer ◽  
Crystal Polymer ◽  
Organic Semiconductor Laser ◽  
Polymer Grating

Light gain amplification in microcavity organic semiconductor laser diodes under electrical pumping

2017 ◽  
Vol 62 (24) ◽  
pp. 1637-1638 ◽  
Author(s):  
Jie Lin ◽  
Yongsheng Hu ◽  
Ying Lv ◽  
Xiaoyang Guo ◽  
Xingyuan Liu
Keyword(s):  
Semiconductor Laser ◽  
Organic Semiconductor ◽  
Laser Diodes ◽  
Semiconductor Laser Diodes ◽  
Organic Semiconductor Laser

scholarly journals Polymer Dispersed Cholesteric Liquid Crystals With a Toroidal Director Configuration under an Electric Field

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 732
Author(s):  
Anna P. Gardymova ◽  
Mikhail N. Krakhalev ◽  
Victor Ya. Zyryanov ◽  
Alexandra A. Gruzdenko ◽  
Andrey A. Alekseev ◽  
...  
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Electric Field ◽  
Point Defects ◽  
Structural Response ◽  
Optical Filters ◽  
Response Curves ◽  
Polymer Dispersed Liquid Crystal ◽  
Dichroic Dye ◽  
Polymer Dispersed

The electro-optical properties of polymer dispersed liquid crystal (PDLC) films are highly dependent on the features of the contained liquid crystal (LC) droplets. Cholesteric LC droplets with homeotropic boundaries can form several topologically different orientational structures, including ones with single and more point defects, layer-like, and axisymmetric twisted toroidal structures. These structures are very sensitive to an applied electric field. In this work, we have demonstrated experimentally and by computer simulations that twisted toroidal droplets reveal strong structural response to the electric field. In turn, this leads to vivid changes in the optical texture in crossed polarizers. The response of droplets of different sizes were found to be equivalent in terms of dimensionless parameters. In addition, the explanation of this phenomenon showed a comparison of theoretical and experimental structural response curves aids to determine the shape of the droplet. Finally, we demonstrated that the addition of a dichroic dye allows such films to be used as optical filters with adjustable color even without polarizers.

Kinetics of Droplet Formation in UV-Cured Polymer-Dispersed Liquid Crystal Films

1994 ◽  
Vol 33 (Part 1, No. 5A) ◽  
pp. 2641-2647 ◽  
Author(s):  
Vasilii G. Nazarenko ◽  
Seshu Sarala ◽  
Nelamangala V. Madhusudana
Keyword(s):  
Liquid Crystal ◽  
Droplet Formation ◽  
Liquid Crystal Films ◽  
Polymer Dispersed Liquid Crystal ◽  
Crystal Films ◽  
Polymer Dispersed ◽  
Kinetics Of
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