Issue 12, 2023
From the journal:

Chemical Communications

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

Rui Duan,‡a   Zitong Zhang,‡a   Lian Xiao,a   Tianhua Ren,a   Xuehong Zhou, ORCID logo a   Yi Tian Thung,a   Van Duong Ta, ORCID logo *b   Jun Yang*c  and  Handong Sun ORCID logo *a  

* Corresponding authors

a Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore
E-mail: HDSun@ntu.edu.sg

b Department of Optical Devices, Le Quy Don Technical University, Hanoi 100000, Vietnam
E-mail: duong.ta@lqdtu.edu.vn

c Guangdong Provincial Key Laboratory of Information Photonics Technology, College of Information Engineering, Guangdong University of Technology, Guangzhou 510006, China
E-mail: yangj@gdut.edu.cn

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.

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

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Article information

DOI
https://doi.org/10.1039/D2CC06518E
Article type
Communication
Submitted
30 Nov 2022
Accepted
12 Jan 2023
First published
13 Jan 2023
This article is Open Access
Creative Commons BY-NC license

Chem. Commun., 2023,59, 1641-1644

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

R. Duan, Z. Zhang, L. Xiao, T. Ren, X. Zhou, Y. T. Thung, V. D. Ta, J. Yang and H. Sun, Chem. Commun., 2023, 59, 1641 DOI: 10.1039/D2CC06518E

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