Delocalized lattice plasmon resonances show dispersive quality factors

Wei Zhou, Yi Hua, Mark D. Huntington, Teri W Odom

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

This Letter describes how out-of-plane lattice plasmon (OLP) resonances in 2D Au nanoparticle (NP) arrays show dispersive quality factors. These quality factors can be tailored simply by controlling NP height. Numerical calculations of near-field optical properties and band diagrams were performed to understand the measured dispersion effects of the OLPs. The results revealed that delocalized OLPs are a type of surface Bloch mode composed of many Bloch harmonics. As the OLP dispersion evolves from a stationary state to a propagating state, the nonradiative loss decreases because of weak local field confinement, whereas the radiative loss increases because of strong coupling to the leaky zero-order harmonic.

Original languageEnglish
Pages (from-to)1381-1385
Number of pages5
JournalJournal of Physical Chemistry Letters
Volume3
Issue number10
DOIs
Publication statusPublished - May 17 2012

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Q factors
Nanoparticles
harmonics
nanoparticles
near fields
Optical properties
diagrams
optical properties

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Delocalized lattice plasmon resonances show dispersive quality factors. / Zhou, Wei; Hua, Yi; Huntington, Mark D.; Odom, Teri W.

In: Journal of Physical Chemistry Letters, Vol. 3, No. 10, 17.05.2012, p. 1381-1385.

Research output: Contribution to journalArticle

Zhou, Wei ; Hua, Yi ; Huntington, Mark D. ; Odom, Teri W. / Delocalized lattice plasmon resonances show dispersive quality factors. In: Journal of Physical Chemistry Letters. 2012 ; Vol. 3, No. 10. pp. 1381-1385.
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