Author:
Dai Qin ,Li Yong ,Wu Ri-Na ,Geng Yue ,Quan Wei ,Li Ye-Qiu ,Peng Zeng-Hui ,Yao Li-Shuang , ,
Abstract
The wedge cell of cholesteric liquid crystal device is designed and fabricated, and doping PM580 (exciton) in the cholesteric liquid crystal, the laser emission action is studied. There appear a series of parallel wedge edges of dislocation lines and different shapes of domain in the wedge cell. The planar state of alignment is confirmed. A second harmonic Nd:YAG 532 nm laser is adopted as a pump light beam, and then one-dimensional tunable laser radiation is obtained and its wavelength interval is approximately 1 nm and tuning range is about 17 nm. In the processs of interaction between the torques of LC and the surface anchoring of direction film, the pitch elongation takes place. The positon of photonic band gap is changed, so the laser radiation wavelength can be tuned in the band edge.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Reference10 articles.
1. Kopp V I, Fan B, Vithana H K M, Genack A Z 1998 Opt. Lett. 23 1707
2. Beeckman J, Neyts K, Vanbrabant J M P 2011 Opt. Eng. 50 081202
3. Liu Y J, Sun W M, Liu X Q, Yao L S, Lu X H, Xuan L 2012 Acta Phys. Sin. 61 114211 (in Chinese) [刘永军, 孙伟民, 刘晓颀, 姚丽双, 鲁兴海, 宣丽 2012 物理学报 61 114211]
4. Tatsunosuke M, Masahiro K 2011 Mol. Cryst. Liq. Cryst. 544 77
5. Gevorgyan A H, Kocharian A N 2012 Opt. Commun. 285 854
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