Lasing emission of dye-doped cholesteric liquid crystal microdroplet wrapped by polyglycerol in hollow glass microsphere  

作　　者：Chi Zhang Dongying Fu Chunli Xia Lishuang Yao Chunlian Lu Weimin Sun Yongjun Liu 张弛;付冬颖;夏春莉;姚丽双;卢春莲;孙伟民;刘永军(Key Laboratory of In-fiber Integrated Optics,Ministry of Education,Harbin Engineering University,Harbin 150001,China;State Key Laboratory of Applied Optics,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;Department of Physics,College of Science,Shantou University,Shantou 515063,China)

机构地区：[1]Key Laboratory of In-fiber Integrated Optics,Ministry of Education,Harbin Engineering University,Harbin 150001,China [2]State Key Laboratory of Applied Optics,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China [3]Department of Physics,College of Science,Shantou University,Shantou 515063,China

出　　处：《Chinese Optics Letters》2020年第1期44-48,共5页中国光学快报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Nos.U1531102,11603008,and 61107059);the Fundamental Research Funds for the Central Universities(No.HEUCF181116).

摘　　要：In this Letter,a dye-doped cholesteric liquid crystal(DDCLC)-filled hollow glass microsphere is demonstrated to be a resonator with good temperature response.A diglycerol layer is used to wrap the DDCLCs microdroplet to keep it steady and control its orientation.The whispering gallery mode(WGM)lasing and photonic band gap(PBG)lasing caused by two different mechanisms were obtained under the pump of a pulsed laser,and the temperature response of these two kinds of lasing was studied.For the liquid crystal and chiral material used in this Letter,both the WGM lasing and the PBG lasing have a blue shift in wavelength with increasing temperature.

关 键 词：CHOLESTERIC liquid crystal MICRODROPLET LASING EMISSION whispering gallery mode 

分 类 号：TQ171.727[化学工程—玻璃工业] O753.2[化学工程—硅酸盐工业] TN24[理学—晶体学] TN751.2[电子电信—物理电子学]