期刊
CHEMICAL COMMUNICATIONS
卷 53, 期 21, 页码 3102-3105出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cc08094d
关键词
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资金
- Beijing Municipal Natural Science Foundation [2142017]
- Ministry of Science and Technology of China [2015CB856502]
- Fundamental Research Funds
- National Natural Science Foundation of China [21533013, 21521062]
We demonstrate the fabrication of organic high Q active whispering-gallery- mode (WGM) resonators from pi-conjugated polymer by a controlled emulsion-solvent-evaporation method, which can simultaneously provide optical gain and act as an effective resonant cavity. By measuring the shift of their lasing modes on exposure to organic vapor, we successfully monitored the slight concentration variation in the chemical gas. These microlaser sensors demonstrated high detection sensitivity and good signal repeatability under continuous chemical gas treatments. The results offer an effective strategy to design miniaturized optical sensors.
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