Excitation of dark plasmons in metal nanoparticles by a localized emitter.

Journal Article · Fri Mar 13 00:00:00 EDT 2009 · Phys. Rev. Lett.

DOI:https://doi.org/10.1103/PhysRevLett.102.107401· OSTI ID:953455

Liu, M; Lee, T -W; Gray, S; Guyot-Sionnest, P; Pelton, M

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.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC); MRSEC NSF-DMR grant
• DOE Contract Number: DE-AC02-06CH11357
• OSTI ID: 953455
• Report Number(s): ANL/CNM/JA-61927; PRLTAO; TRN: US0902768
• Journal Information: Phys. Rev. Lett., Vol. 102, Issue Mar. 13, 2009; ISSN 0031-9007
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHAINS
DIPOLES
EXCITATION
HYBRIDIZATION
NANOSTRUCTURES
PLASMONS