期刊
ACS PHOTONICS
卷 5, 期 11, 页码 4343-4351出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.8b00552
关键词
exciton-polaritons; anti-Stokes fluorescence; organic semiconductor; microcavities
类别
资金
- U.K. EPSRC [EP/M025330/1]
- EPSRC [EP/M025330/1] Funding Source: UKRI
We explore the generation of anti-Stokes fluorescence from strongly coupled organic dye microcavities following resonant ground-state excitation. We observe polariton emission along the lower polariton branch, with our results indicating that this process involves a return to the exciton reservoir and the absorption of thermal energy from molecules in a vibrationally excited ground-state. We speculate that the generation of a population of hot polaritons is enhanced by the fact that the cavity suppresses the emission of Stokes-shifted fluorescence, as it is energetically located below the cutoff frequency of the cavity.
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