Chinese Journal of Liquid Crystals and Displays, Volume. 35, Issue 7, 697(2020)
Review on laser properties of cholesteric liquid crystals with multiple-emulsion microstructures
Dye-doped band-edge cholesteric liquid crystal (CLC) microlaser has been one of the focus of academic researches ever because of intrinsic properties, such as low threshold and mirrorless. As a novel three-dimensional omnidirectional microlaser, CLC emulsion droplets with complex microstructures exhibit appealing characteristics, such as miniaturization, integration and wavelength tunabilities, etc., arousing broad interests in the research field of liquid crystals (LCs) for non-display applications. The complex spherical core-shell microstructure results in the generation of a variety of laser modes such as distributed feedback (DFB) mode, whispering gallery (WG) mode and Fabry-Pérot(FP). The rapid development of glass-capillary microfluidic technique makes it possible to produce monodispersed CLC droplets with controllable sizes, providing conditions that are necessary for the fabrication of multiple emulsions with complex microstructures. In this review, the glass-capillary microfluidic technique is briefly introduced for the production of monodispersed LC emulsions. And the recent studies on the laser behavior in both the single-emulsion CLC droplets and multiple-emulsion CLC core-shell microstructures are presented and well discussed.
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LUO Wei-cheng, CHE Kai-jun, LI Sen-sen, CHEN Lu-jian. Review on laser properties of cholesteric liquid crystals with multiple-emulsion microstructures[J]. Chinese Journal of Liquid Crystals and Displays, 2020, 35(7): 697
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Received: Mar. 6, 2020
Accepted: --
Published Online: Oct. 27, 2020
The Author Email: LUO Wei-cheng (541799565@qq.com)