Lasing emission of dye-doped cholesteric liquid crystal microdroplet wrapped by polyglycerol in hollow glass microsphere
In this paper, a dye-doped cholesteric liquid crystal (DDCLC) filled hollow glass microsphere is demonstrate 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 kind of lasing were studied. For the liquid crystal and chiral material used in this paper, both the WGM lasing and the PBG lasing have a blue shift in wavelength with increasing temperature.
作者单位：Shantou University College of Science
Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University
Harbin Engineering University
Zhang Chi,Fu Dongying,Xia Chunli,Yao Lishuang,Lu Chunlian,Sun weimin,Liu Yongjun. Lasing emission of dye-doped cholesteric liquid crystal microdroplet wrapped by polyglycerol in hollow glass microsphere[J].Chinese Optics Letters,2020,18(1):01.