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ABSTRACT
We demonstrate dye-doped low threshold polymerised cholesteric liquid crystal (PCLC) film lasers with red, green and blue (RGB) colour. The polymer network structure of lasers, which were fabricated by washing-out/refilling method, enhanced the stability of the laser thus avoiding the external interference like temperature and electromagnetic field and prevented the efficiency of laser dye from decreasing during polymerisation. The proposed RGB PCLC film lasers have application potential in such as coherent light source, multi-wavelength biomedical light source, white laser and other photonic applications.
GRAPHICAL ABSTRACT
Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Funding
This work was supported by the Natural National Science Foundation of China (NSFC) [61875081] and Shenzhen Science and Technology Innovation Council [JCYJ20160226192528793 and KQTD2015071710313656].