Journal
ACS PHOTONICS
Volume 5, Issue 1, Pages 217-224Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.7b00677
Keywords
vibrational strong coupling; IR emission; vibro-polariton; blackbody emission; Kirchhoff's law
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Funding
- International Center for Frontier Research in Chemistry (icFRC, Strasbourg)
- ANR Equipex Union [ANR-10-EQPX-52-01]
- Labex NIE Projects [ANR-11-LABX-0058 NIE]
- CSC [ANR-10-LABX-0026 CSC, ANR-10-IDEX-0002-02]
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The strong coupling regime of light matter interaction has recently been extended to IR active molecular vibrations coupled to microcavities, resulting in the formation of so-called vibro-polaritonic states. Here we demonstrate the emissivity of such hybrid states. Using thermal excitation, we achieve polaritonic IR emission from a strongly coupled polymer. Thermal excitation of vibro-polaritons, thus, constitutes an original way of establishing sizable excited states populations in strongly coupled systems and opens new routes to the study of interacting vibro-polaritons.
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