Thermalization and cooling of plasmon-exciton polaritons: Towards quantum condensation
Entity
UAM. Departamento de Física Teórica de la Materia CondensadaPublisher
American Physical SocietyDate
2013-10-18Citation
10.1103/PhysRevLett.111.166802
Physical Review Letters 111.16 (2013): 166802
ISSN
0031-9007 (print); 1079-7114 (online)DOI
10.1103/PhysRevLett.111.166802Funded by
This work was supported by the Netherlands Foundation for Fundamental Research on Matter (FOM) and the Netherlands Organization for Scientific Research (NWO), and is part of an industrial partnership program between Philips and FOM. J. F. and F. J. G. V. acknowledge support by the European Research Council under Grant No. 290981 (PLASMONANOQUANTA)Project
info:eu-repo/grantAgreement/EC/FP7/290981Editor's Version
http://dx.doi.org/10.1103/PhysRevLett.111.166802Subjects
Emission dispersion; Metallic nanorods; Periodic arrays; Plasmonic nanoparticle arrays; Polymer layers; Room temperature; Strong coupling; Surface lattice; FísicaRights
© 2013 American Physical SocietyAbstract
We present indications of thermalization and cooling of quasiparticles, a precursor for quantum condensation, in a plasmonic nanoparticle array. We investigate a periodic array of metallic nanorods covered by a polymer layer doped with an organic dye at room temperature. Surface lattice resonances of the array - hybridized plasmonic-photonic modes - couple strongly to excitons in the dye, and bosonic quasiparticles which we call plasmon-exciton polaritons (PEPs) are formed. By increasing the PEP density through optical pumping, we observe thermalization and cooling of the strongly coupled PEP band in the light emission dispersion diagram. For increased pumping, we observe saturation of the strong coupling and emission in a new weakly coupled band, which again shows signatures of thermalization and cooling
Files in this item
Google Scholar:Feist, Johannes
-
Verschuuren, M. A.
-
García Vidal, Fco. José
-
Gómez Rivas, J.
-
Rodriguez, S.R.K.
This item appears in the following Collection(s)
Related items
Showing items related by title, author, creator and subject.