Locally-induced permanent birefringence by polymer-stabilization of liquid crystal in cells and photonic crystal fibers

被引：3
|
作者：
Chychlowski, M. S. [1 ]
Ertman, S. [1 ]
Rutkowska, K. [1 ]
Strzezysz, O. [2 ]
Dabrowski, R. [2 ]
Wolinski, T. R. [1 ]
机构：
[1] Warsaw Univ Technol, Fac Phys, Koszykowa 75, Warsaw, Poland
[2] Mil Univ Technol, Fac Adv Technol & Chem, Gen Sylwestra Kaliskiego 2, Warsaw, Poland
来源：
OPTO-ELECTRONICS REVIEW | 2018年 / 26卷 / 03期
关键词：
Fiber optics; Photonic crystal fibers; Liquid crystals; Polymers; Birefringence; Ultraviolet; SUPERCONTINUUM GENERATION; LOOP MIRROR; SENSOR; INTERFEROMETER; DESIGN;
D O I：
10.1016/j.opelre.2018.05.001
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The aim of this work was to induce permanent birefringence both in typical liquid crystal cells and photonic crystal fibers (PCFs) by photo-polymerization. For this purpose three different liquid crystalline materials, namely E7, 5CB, and 6CHBT were combined with a mixture of RM257 monomer and a UV sensitive initiator with the percentage weight less than 10%. Due to the photo-polymerization process it was possible to achieve polymer-stabilized liquid crystal orientation inside LC cells and micro-sized cylindrical glass tubes. In particular, periodic change in spatial molecular orientation was achieved by selective photo-polymerization. Successful results obtained in these simple geometries allowed for the experimental procedure to be repeated in PCFs leading to locally-induced permanent birefringence in PCFs. (C) 2018 Association of Polish Electrical Engineers (SEP). Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：242 / 246
页数：5
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