Review on laser properties of cholesteric liquid crystals with multiple-emulsion microstructures

Wei-cheng LUO; Kai-jun CHE; Sen-sen LI; Lu-jian CHEN

doi:10.37188/YJYXS20203507.0697

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Review on laser properties of cholesteric liquid crystals with multiple-emulsion microstructures

Devices and Material Physics | 更新时间：2020-07-13

- Review on laser properties of cholesteric liquid crystals with multiple-emulsion microstructures
- Chinese Journal of Liquid Crystals and Displays Vol. 35, Issue 7, Pages: 697-709(2020)
- 作者机构：
  
  厦门大学电子科学与技术学院, 福建厦门 361005
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(61675172)
- DOI：10.37188/YJYXS20203507.0697
  CLC： O753.2;TP394.1;TH691.9
- Received：06 March 2020，
  
  Revised：22 March 2020，
  
  Accepted：22 March 2020，
  
  Published：05 July 2020
- 稿件说明：
移动端阅览
Wei-cheng LUO, Kai-jun CHE, Sen-sen LI, et al. Review on laser properties of cholesteric liquid crystals with multiple-emulsion microstructures[J]. Chinese journal of liquid crystals and displays, 2020, 35(7): 697-709.
DOI：

Wei-cheng LUO, Kai-jun CHE, Sen-sen LI, et al. Review on laser properties of cholesteric liquid crystals with multiple-emulsion microstructures[J]. Chinese journal of liquid crystals and displays, 2020, 35(7): 697-709. DOI： 10.37188/YJYXS20203507.0697.

摘要

染料掺杂的带边胆甾相液晶微激光器因阈值低、无需反射镜的特点，自提出以来便一直是研究热点。具有复杂微结构的胆甾相液晶液滴是一种新颖的三维全向微激光器，兼具有小型化、集成化与波长可调谐的特性，更是引起了液晶非显示领域研究者们的广泛兴趣。其复杂的球形核壳微结构，促使诸如分布反馈、回音壁和法布-珀罗等多种激光模式的产生。而玻璃毛细管微流控技术的出现，使大规模制备单分散、尺寸可控的胆甾相液晶液滴成为可能，同时为制备结构复杂的多重乳液提供了必要条件。本文简要介绍了制备液晶乳液所使用的玻璃毛细管微流控技术，并综述了近年来与单重乳液胆甾相液晶液滴及多重乳液胆甾相液晶核壳微结构中的激光行为相关的研究工作。

Abstract

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.

关键词

Keywords

references

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