• Chinese Optics Letters
  • Vol. 18, Issue 1, 011402 (2020)
Chi Zhang1, Dongying Fu1, Chunli Xia1, Lishuang Yao2、3, Chunlian Lu1, Weimin Sun1, and Yongjun Liu1、2、*
Author Affiliations
  • 1Key Laboratory of In-fiber Integrated Optics, Ministry of Education, Harbin Engineering University, Harbin 150001, China
  • 2State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
  • 3Department of Physics, College of Science, Shantou University, Shantou 515063, China
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    DOI: 10.3788/COL202018.011402 Cite this Article Set citation alerts
    Chi Zhang, Dongying Fu, Chunli Xia, Lishuang Yao, Chunlian Lu, Weimin Sun, Yongjun Liu. Lasing emission of dye-doped cholesteric liquid crystal microdroplet wrapped by polyglycerol in hollow glass microsphere[J]. Chinese Optics Letters, 2020, 18(1): 011402 Copy Citation Text show less

    Abstract

    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.
    Δλ=λ0(1ndndTΔT+1DdDdTΔT),(1)

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    dnedT=B2β(Δn)o3Tc(1TTc)1β,(2)

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    Chi Zhang, Dongying Fu, Chunli Xia, Lishuang Yao, Chunlian Lu, Weimin Sun, Yongjun Liu. Lasing emission of dye-doped cholesteric liquid crystal microdroplet wrapped by polyglycerol in hollow glass microsphere[J]. Chinese Optics Letters, 2020, 18(1): 011402
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