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Excitonic spectral features in strongly-coupled organic polaritons

Excitonic spectral features in strongly-coupled organic polaritons
Excitonic spectral features in strongly-coupled organic polaritons
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.
1050-2947
1-12
Cwik, Justyna A.
68b73211-7749-4e2e-9d64-a6332b6282b6
Kirton, Peter
1d09d26c-41eb-44d7-84db-4681cd6d7edd
De Liberato, Simone
5942e45f-3115-4027-8653-a82667ed8473
Keeling, Jonathan
e988426b-e5d6-4cb3-bf49-bb5b97f5b3e0
Cwik, Justyna A.
68b73211-7749-4e2e-9d64-a6332b6282b6
Kirton, Peter
1d09d26c-41eb-44d7-84db-4681cd6d7edd
De Liberato, Simone
5942e45f-3115-4027-8653-a82667ed8473
Keeling, Jonathan
e988426b-e5d6-4cb3-bf49-bb5b97f5b3e0

Cwik, Justyna A., Kirton, Peter, De Liberato, Simone and Keeling, Jonathan (2016) Excitonic spectral features in strongly-coupled organic polaritons. Physical Review A, 93 (33840), 1-12. (doi:10.1103/PhysRevA.93.033840).

Record type: Article

Abstract

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.

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1506.08974v2.pdf - Accepted Manuscript
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Published date: 22 March 2016
Organisations: Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 393657
URI: http://eprints.soton.ac.uk/id/eprint/393657
ISSN: 1050-2947
PURE UUID: a62fb0f1-5698-48a7-929e-bc119cac7c1f
ORCID for Simone De Liberato: ORCID iD orcid.org/0000-0002-4851-2633

Catalogue record

Date deposited: 29 Apr 2016 10:29
Last modified: 17 Dec 2019 01:37

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Contributors

Author: Justyna A. Cwik
Author: Peter Kirton
Author: Jonathan Keeling

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