Excitonic spectral features in strongly coupled organic polaritons
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Starting from a microscopic model, we investigate the optical spectra of molecules in strongly coupled organic microcavities examining how they might self-consistently adapt their coupling to light. We consider both rotational and vibrational degrees of freedom, focusing on features which can be seen in the peak in the center of the spectrum at the bare excitonic frequency. In both cases we find that the matter-light coupling can lead to a self-consistent change of the molecular states, with consequent temperature-dependent signatures in the absorption spectrum. However, for typical parameters, these effects are much too weak to explain recent measurements. We show that another mechanism which naturally arises from our model of vibrationally dressed polaritons has the right magnitude and temperature dependence to be at the origin of the observed data.
Cwik , J A , Kirton , P G , de Liberato , S & Keeling , J M J 2016 , ' Excitonic spectral features in strongly coupled organic polaritons ' Physical Review. A, Atomic, molecular, and optical physics , vol 93 , no. 3 , 033840 . DOI: 10.1103/PhysRevA.93.033840
Physical Review. A, Atomic, molecular, and optical physics
© 2016, Publisher / the Author(s). This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at journals.aps.org / https://dx.doi.org/10.1103/PhysRevA.93.033840