Delocalized lattice plasmon resonances show dispersive quality factors

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

doi:10.1021/jz300318v

Delocalized lattice plasmon resonances show dispersive quality factors

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

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

57 Scopus citations

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 language	English (US)
Pages (from-to)	1381-1385
Number of pages	5
Journal	Journal of Physical Chemistry Letters
Volume	3
Issue number	10
DOIs	https://doi.org/10.1021/jz300318v
State	Published - May 17 2012

ASJC Scopus subject areas

General Materials Science
Physical and Theoretical Chemistry

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10.1021/jz300318v

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title = "Delocalized lattice plasmon resonances show dispersive quality factors",

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.",

author = "Wei Zhou and Yi Hua and Huntington, {Mark D.} and Odom, {Teri W.}",

year = "2012",

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doi = "10.1021/jz300318v",

language = "English (US)",

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journal = "Journal of Physical Chemistry Letters",

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T1 - Delocalized lattice plasmon resonances show dispersive quality factors

AU - Zhou, Wei

AU - Hua, Yi

AU - Huntington, Mark D.

AU - Odom, Teri W.

PY - 2012/5/17

Y1 - 2012/5/17

N2 - 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.

AB - 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.

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Delocalized lattice plasmon resonances show dispersive quality factors

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