Theory for the stationary polariton response in the presence of vibrations
Kansanen, Kalle S. U.; Asikainen, Aili; Toppari, J. Jussi; Groenhof, Gerrit; Heikkilä, Tero T. (2019). Theory for the stationary polariton response in the presence of vibrations. Physical Review B, 100 (24), 245426. DOI: 10.1103/PhysRevB.100.245426
Published inPhysical Review B
© 2019 American Physical Society
We construct a model describing the response of a hybrid system where the electromagnetic field—in particular, surface plasmon polaritons—couples strongly with electronic excitations of atoms or molecules. Our approach is based on the input-output theory of quantum optics, and in particular it takes into account the thermal and quantum vibrations of the molecules. The latter is described within the P(E) theory analogous to that used in the theory of dynamical Coulomb blockade. As a result, we are able to include the effect of the molecular Stokes shift on the strongly coupled response of the system. Our model then accounts for the asymmetric emission from upper and lower polariton modes. It also allows for an accurate description of the partial decoherence of the light emission from the strongly coupled system. Our results can be readily used to connect the response of the hybrid modes to the emission and fluorescence properties of the individual molecules, and thus are relevant in understanding any utilization of such systems, such as coherent light harvesting. ...
PublisherAmerican Physical Society
Publication in research information system
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Related funder(s)Academy of Finland
Funding program(s)Centre of Excellence, AoF; Academy Project, AoF
Additional information about fundingWe acknowledge the support from the Academy of Finland Center of Excellence program (Project No. 284594) and Projects No. 289947, No. 290677, and No. 317118.
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