Electro-tunable liquid crystal laser based on high-Q Fabry-Perot microcavity

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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. (C) 2017 Optical Society of America
Publisher
OPTICAL SOC AMER
Issue Date
2017-01
Language
English
Article Type
Article
Keywords

DISPLAY APPLICATIONS; OPTOFLUIDIC LASERS; REFRACTIVE-INDEXES; SPECTRAL RANGE; DYE-LASERS; DNA

Citation

OPTICS EXPRESS, v.25, no.2, pp.874 - 880

ISSN
1094-4087
DOI
10.1364/OE.25.000874
URI
http://hdl.handle.net/10203/223333
Appears in Collection
NT-Journal Papers(저널논문)
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