Chapter 15
Cooperative Effects in Plasmonics
Vitaliy N. Pustovit and Tigran V. Shahbazyan
Abstract In this chapter, we present our results on cooperative effects in hybrid
plasmonic system involving a large number of fluorophores, e.g., dye molecules or
semiconductor quantum dots, situated near a plasmonic nanostructure, e.g., metal
nanoparticle. The optical properties of such complex systems are governed by the
plasmon-mediated coupling between the fluorophores that leads to drastic changes
in the system optical properties. Specifically, we consider in some detail two manifestations of plasmon-assisted cooperative behavior near a spherical nanoparticle:
(a) superradiance by an ensemble of emitters and (b) cooperative energy transfer
from an ensemble of donors to an acceptor.
Keywords Plasmon · Superradiance · Cooperative effects · Energy transfer
15.1 Plasmon-Mediated Superradiance Near Metal
Nanostructures
15.1.1 Introduction
Superradiance of an ensemble of dipoles confined within a limited region in space
has been discovered in the pioneering work by Dicke [1]. The underlying physical
mechanism can be described as follows. Suppose that a large number, N , of dipoles
with frequency ω 0 are confined in a volume with characteristic size L much smaller
V. N. Pustovit
Materials and Manufacturing Directorate, Air Force Research Laboratory,
Wright Patterson Air Force Base, Dayton, OH 45433, USA
T. V. Shahbazyan (B)
Department of Physics, Jackson State University, Jackson, MS 39217, USA
e-mail: shahbazyan@jsums.edu
T. V. Shahbazyan and M. I. Stockman (eds.), Plasmonics: Theory and Applications,
525
Challenges and Advances in Computational Chemistry and Physics 15,
DOI: 10.1007/978-94-007-7805-4_15, © Springer Science+Business Media Dordrecht 2013
Cooperative Effects in Plasmonics
Vitaliy N. Pustovit and Tigran V. Shahbazyan
Abstract In this chapter, we present our results on cooperative effects in hybrid
plasmonic system involving a large number of fluorophores, e.g., dye molecules or
semiconductor quantum dots, situated near a plasmonic nanostructure, e.g., metal
nanoparticle. The optical properties of such complex systems are governed by the
plasmon-mediated coupling between the fluorophores that leads to drastic changes
in the system optical properties. Specifically, we consider in some detail two manifestations of plasmon-assisted cooperative behavior near a spherical nanoparticle:
(a) superradiance by an ensemble of emitters and (b) cooperative energy transfer
from an ensemble of donors to an acceptor.
Keywords Plasmon · Superradiance · Cooperative effects · Energy transfer
15.1 Plasmon-Mediated Superradiance Near Metal
Nanostructures
15.1.1 Introduction
Superradiance of an ensemble of dipoles confined within a limited region in space
has been discovered in the pioneering work by Dicke [1]. The underlying physical
mechanism can be described as follows. Suppose that a large number, N , of dipoles
with frequency ω 0 are confined in a volume with characteristic size L much smaller
V. N. Pustovit
Materials and Manufacturing Directorate, Air Force Research Laboratory,
Wright Patterson Air Force Base, Dayton, OH 45433, USA
T. V. Shahbazyan (B)
Department of Physics, Jackson State University, Jackson, MS 39217, USA
e-mail: shahbazyan@jsums.edu
T. V. Shahbazyan and M. I. Stockman (eds.), Plasmonics: Theory and Applications,
525
Challenges and Advances in Computational Chemistry and Physics 15,
DOI: 10.1007/978-94-007-7805-4_15, © Springer Science+Business Media Dordrecht 2013