Dome-shaped mode lasing from liquid crystals for full-color lasers and high-sensitivity detection

Rui Duan; Zitong Zhang; Lian Xiao; Tianhua Ren; Xuehong Zhou; Yi Tian Thung; Van Duong Ta; Jun Yang; Handong Sun

doi:10.1039/d2cc06518e

Dome-shaped mode lasing from liquid crystals for full-color lasers and high-sensitivity detection

Chem Commun (Camb). 2023 Feb 7;59(12):1641-1644. doi: 10.1039/d2cc06518e.

Authors

Rui Duan¹, Zitong Zhang¹, Lian Xiao¹, Tianhua Ren¹, Xuehong Zhou¹, Yi Tian Thung¹, Van Duong Ta², Jun Yang³, Handong Sun¹

Affiliations

¹ Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore. HDSun@ntu.edu.sg.
² Department of Optical Devices, Le Quy Don Technical University, Hanoi 100000, Vietnam. duong.ta@lqdtu.edu.vn.
³ Guangdong Provincial Key Laboratory of Information Photonics Technology, College of Information Engineering, Guangdong University of Technology, Guangzhou 510006, China. yangj@gdut.edu.cn.

PMID: 36688338
DOI: 10.1039/d2cc06518e

Abstract

In this communication, we report a new class of oscillation mode, dome-shaped mode (DSM), in liquid crystal (LC) microlasers. A record high Q-factor over 24 000 is achieved in LC soft-matter microlasers. We successfully presented a proof-of-concept demonstration of red, green, blue (RGB) LC-DSM microlaser pixels with a 74% broader achievable color gamut than the standard RGB color space. Besides, the detection limit for acetone vapor molecules is as low as 0.5 ppm, confirming the excellent potential of the proposed LC-DSM microlaser in ultra-high sensitivity detection.