2024-03-28T21:51:08Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/922722021-06-21T11:46:54Zcom_10261_34com_10261_5col_10261_287
2014-02-21T12:15:47Z
urn:hdl:10261/92272
Plasmon blockade in nanostructured graphene
Manjavacas, Alejandro
Nordlander, Peter
García de Abajo, Francisco Javier
Among the many extraordinary properties of graphene, its optical response allows one to easily tune its interaction with nearby molecules via electrostatic doping. The large confinement displayed by plasmons in graphene nanodisks makes it possible to reach the strong-coupling regime with a nearby quantum emitter, such as a quantum dot or a molecule. In this limit, the quantum emitter can introduce a significant plasmon-plasmon interaction, which gives rise to a plasmon blockade effect. This produces, in turn, strongly nonlinear absorption cross sections and modified statistics of the bosonic plasmon mode. We characterize these phenomena by studying the equal-time second-order correlation function g (2)(0), which plunges below a value of 1, thus revealing the existence of nonclassical plasmon states. The plasmon-emitter coupling, and therefore the plasmon blockade, can be efficiently controlled by tuning the doping level of the graphene nanodisks. The proposed system emerges as a new promising platform to realize quantum plasmonic devices capable of commuting optical signals at the single-photon/plasmon level. © 2012 American Chemical Society.
2014-02-21T12:15:47Z
2014-02-21T12:15:47Z
2012
2014-02-21T12:15:47Z
artículo
ACS Nano 6(2): 1724-1731 (2012)
http://hdl.handle.net/10261/92272
10.1021/nn204701w
eng
info:eu-repo/grantAgreement/EC/FP7/248855
info:eu-repo/grantAgreement/EC/FP7/248909
closedAccess
American Chemical Society