Electro-tunable liquid crystal laser based on high-Q Fabry-P?rot microcavity

Title
Electro-tunable liquid crystal laser based on high-Q Fabry-P?rot microcavity
Authors
이원석WENJIE WANG이국식류성호Xudong Fan윤동기
Issue Date
2017-01
Publisher
Optics express
Citation
VOL 25, NO 2-880
Abstract
We demonstrate an electro-tunable laser based on a plano-concave (p-c) Fabry-Perot (FP) microcavity filled with dye-doped liquid crystal (LC) gain material. Owing to the high Q-factor of the p-c FP microcavity, the lasing threshold of the LC laser is as low as 0.58 mu J/mm(2). The single-mode emission wavelength can be easily tuned by varying applied voltage, which induces the reconfiguration of LC molecules. Furthermore, this lasing platform operates at room temperature, thanks to the wide temperature range of the nematic LC. We believe that our LC laser is widely applicable to light sources of various micro total analysis systems
URI
http://pubs.kist.re.kr/handle/201004/71094
ISSN
1094-4087
Appears in Collections:
KIST Publication > Article
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