Effective medium model for the spectral properties of nanoporous gold in the visible

D. Jalas; R. Canchi; A. Yu Petrov; S. Lang; L. Shao; J. Weissmüller; M. Eich

doi:10.1063/1.4904714

Effective medium model for the spectral properties of nanoporous gold in the visible

D. Jalas^*
, R. Canchi
, A. Yu Petrov
, S. Lang
, L. Shao
, J. Weissmüller
, M. Eich

^*Corresponding author for this work

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

33 Scopus citations

Abstract

The spectral properties of nanoporous gold are distinguished by two peaks in the transmission spectrum. Unlike earlier works, we do not attribute the peaks in the transmission to two separate localized plasmon resonances. Instead we show that the spectral shape can be understood as that of diluted gold with a spectrally narrow dip in transmission that arises from the averaged electric field approaching zero. Thus, the transmission characteristics are rather featured by a dip in one broad transmission curve than by two distinct peaks. Nanoporous gold is approximated by the effective medium model of a cubic grid of gold wires.

Original language	English
Article number	241906
Journal	Applied Physics Letters
Volume	105
Issue number	24
DOIs	https://doi.org/10.1063/1.4904714
State	Published - 15 Dec 2014
Externally published	Yes

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title = "Effective medium model for the spectral properties of nanoporous gold in the visible",

abstract = "The spectral properties of nanoporous gold are distinguished by two peaks in the transmission spectrum. Unlike earlier works, we do not attribute the peaks in the transmission to two separate localized plasmon resonances. Instead we show that the spectral shape can be understood as that of diluted gold with a spectrally narrow dip in transmission that arises from the averaged electric field approaching zero. Thus, the transmission characteristics are rather featured by a dip in one broad transmission curve than by two distinct peaks. Nanoporous gold is approximated by the effective medium model of a cubic grid of gold wires.",

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AU - Jalas, D.

AU - Canchi, R.

AU - Petrov, A. Yu

AU - Lang, S.

AU - Shao, L.

AU - Weissmüller, J.

AU - Eich, M.

PY - 2014/12/15

Y1 - 2014/12/15

N2 - The spectral properties of nanoporous gold are distinguished by two peaks in the transmission spectrum. Unlike earlier works, we do not attribute the peaks in the transmission to two separate localized plasmon resonances. Instead we show that the spectral shape can be understood as that of diluted gold with a spectrally narrow dip in transmission that arises from the averaged electric field approaching zero. Thus, the transmission characteristics are rather featured by a dip in one broad transmission curve than by two distinct peaks. Nanoporous gold is approximated by the effective medium model of a cubic grid of gold wires.

AB - The spectral properties of nanoporous gold are distinguished by two peaks in the transmission spectrum. Unlike earlier works, we do not attribute the peaks in the transmission to two separate localized plasmon resonances. Instead we show that the spectral shape can be understood as that of diluted gold with a spectrally narrow dip in transmission that arises from the averaged electric field approaching zero. Thus, the transmission characteristics are rather featured by a dip in one broad transmission curve than by two distinct peaks. Nanoporous gold is approximated by the effective medium model of a cubic grid of gold wires.

UR - https://www.scopus.com/pages/publications/84918835255

U2 - 10.1063/1.4904714

DO - 10.1063/1.4904714

M3 - 文章

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SN - 0003-6951

VL - 105

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 24

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ER -

Effective medium model for the spectral properties of nanoporous gold in the visible

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