Excitation of Dark Plasmons in Metal Nanoparticles by a Localized Emitter
Loading...
Collections
Author/Creator ORCID
Date
2009-03-09
Type of Work
Department
Program
Citation of Original Publication
Liu, Mingzhao, Tae-Woo Lee, Stephen K. Gray, Philippe Guyot-Sionnest, and Matthew Pelton. “Excitation of Dark Plasmons in Metal Nanoparticles by a Localized Emitter.” Physical Review Letters 102, no. 10 (March 9, 2009): 107401. https://doi.org/10.1103/PhysRevLett.102.107401.
Rights
This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain Mark 1.0
Public Domain Mark 1.0
Subjects
Abstract
We study theoretically a dipole emitter placed near a metal nanoparticle and near small chains of two and three nanoparticles. The emitter can efficiently excite dark, or nonradiative, surface-plasmon modes in the nanostructures, in addition to the well-known bright modes. In the case of coupled nanoparticles, the origins of the bright and dark modes can be understood in the context of plasmon hybridization. Excitation of dark modes in nanoparticle chains allows for subwavelength guiding of optical energy with no radiative losses and thus with improved propagation lengths.