We study analytically the absorption properties of an individual quantum absorber, modeled as a two-level system, in the presence of a metallic nanoparticle. The coupling between the two systems can give rise to a Fano interference effect and to a relevant modification of the absorption cross section. Such effect strongly depends on the angle between the dimer axis and the electromagnetic field polarization. From this analysis, we can conclude that the localized surface plasmons are able to enhance the absorption of nanostructures, thus increasing the efficiency of solar cells based on absorbing nanoparticles. © 2015, Springer Science+Business Media New York.
Plasmonic Absorption Enhancement of a Single Quantum Dot
Di Stefano, O.;SAIJA, Rosalba;SAVASTA, Salvatore
2015-01-01
Abstract
We study analytically the absorption properties of an individual quantum absorber, modeled as a two-level system, in the presence of a metallic nanoparticle. The coupling between the two systems can give rise to a Fano interference effect and to a relevant modification of the absorption cross section. Such effect strongly depends on the angle between the dimer axis and the electromagnetic field polarization. From this analysis, we can conclude that the localized surface plasmons are able to enhance the absorption of nanostructures, thus increasing the efficiency of solar cells based on absorbing nanoparticles. © 2015, Springer Science+Business Media New York.Pubblicazioni consigliate
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