Quantum-dot-induced transparency in a nanoscale plasmonic resonator
Year: 2010
Type: article
Abstract: We investigate the near-field optical coupling between a single semiconductor nanocrystal (quantum dot) and a nanometer-scale plasmonic metal resonator using rigorous electrodynamic simulations. Our calculations show that the quantum dot produces a dip in both the extinction and scattering spectra of the surface-plasmon resonator, with a particularly strong change for the scattering spectrum. A phenomenological coupled-oscillator model is used to fit the calculation results and provide physical insight, revealing the roles of Fano interference and hybridization. The results indicate that it is possible to achieve nearly complete transparency as well as enter the strong-coupling regime for a single quantum dot in the near field of a metal nanostructure.
Source: Optics Express
DOI: 10.1364/oe.18.023633
Authors: Xiaohua Wu, Stephen K. Gray, Matthew Pelton
Institutions: Argonne National Laboratory, Center for Nanoscale Materials
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
Awards: G102163711, G1055550527, G107546177, G1286251239, G1313983767, G1505794299, G1664757510, G2101401529, G2287611682, G262962599, G2887060908, G3075337988, G340565428, G426311843, G498139845, G5106849484, G5387317844, G5910536577, G6848031779, G6918803902, G7368700025, G7583137537, G969889393, G993149817
OpenAlex ID: W2058323209