Exciton Polaritons in Transition-Metal Dichalcogenides and Their Direct Excitation via Energy Transfer

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dc.contributor.Scopus6603852436 (Gartstein, Yuri)en_US
dc.contributor.authorGartstein, Yuri N.en_US
dc.contributor.authorLi, Xiaoen_US
dc.contributor.authorZhang, Chuanweien_US
dc.date.accessioned2017-02-27T21:26:51Z
dc.date.available2017-02-27T21:26:51Z
dc.date.created2015-08-28en_US
dc.date.issued2015-08-28en_US
dc.description.abstractExcitons, composite electron-hole quasiparticles, are known to play an important role in optoelectronic phenomena in many semiconducting materials. Recent experiments and theory indicate that the band-gap optics of the newly discovered monolayer transition-metal dichalcogenides (TMDs) is dominated by tightly bound valley excitons. The strong interaction of excitons with long-range electromagnetic fields in these two-dimensional systems can significantly affect their intrinsic properties. Here, we develop a semiclassical framework for intrinsic exciton polaritons in monolayer TMDs that treats their dispersion and radiative decay on the same footing and can incorporate effects of the dielectric environment. It is demonstrated how both inter- and intravalley long-range interactions influence the dispersion and decay of the polaritonic eigenstates. We also show that exciton polaritons can be efficiently excited via resonance energy transfer from quantum emitters such as quantum dots, which may be useful for various applications.en_US
dc.description.sponsorshipNSF grant (no. DMR-1207123); ARO (no. W911NF-12-1-0334) and AFOSR (no. FA9550-13-1-0045).en_US
dc.identifier.bibliographicCitationGartstein, Yuri N., Xiao Li, and Chuanwei Zhang. 2015. "Exciton polaritons in transition-metal dichalcogenides and their direct excitation via energy transfer." Physical Review B 92(7), doi:10.1103/PhysRevB.92.075445en_US
dc.identifier.issn1098-0121en_US
dc.identifier.issue7en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/5288
dc.identifier.volume92en_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevB.92.075445
dc.rights©2016 American Physical Society. All rights reserved.en_US
dc.sourcePhysical Review B
dc.subjectExciton theoryen_US
dc.subjectSemiconductorsen_US
dc.subjectEigenfunctionsen_US
dc.subjectQuantum dotsen_US
dc.subjectPolaritonsen_US
dc.subjectChalcogenidesen_US
dc.titleExciton Polaritons in Transition-Metal Dichalcogenides and Their Direct Excitation via Energy Transferen_US
dc.type.genreArticleen_US

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