Band-gap-tailored random laser

Abstract

A band-gap-tailored random laser with a wide tunable range and low threshold through infrared radiation is demonstrated. When fluorescent dyes are doped into the liquid crystal and heavily doped chiral agent system, we demonstrate a wavelength tuning random laser instead of a side-band laser, which is caused by the combined effect of multi-scattering of liquid crystal (LC) and band-gap control. Through rotating the infrared absorbing material on the side of the LC cell, an adjustable range for random lasing of 80 nm by infrared light irradiation was observed.

Publication DOI: https://doi.org/10.1364/PRJ.6.000390
Divisions: College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: © 2018 Chinese Laser Press
Uncontrolled Keywords: Electronic, Optical and Magnetic Materials,Atomic and Molecular Physics, and Optics
Publication ISSN: 2327-9125
Full Text Link:
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.osa ... uri=prj-6-5-390 (Publisher URL)
PURE Output Type: Article
Published Date: 2018-04-18
Published Online Date: 2018-02-13
Accepted Date: 2018-02-12
Authors: Lu, Hongbo
Xing, Jian
Wei, Cheng
Xia, Jiangying
Sha, Junqing
Ding, Yunsheng
Zhang, Guobing
Xie, Kang
Qiu, Longzhen
Hu, Zhijia (ORCID Profile 0000-0002-8960-5318)

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