Environment effects on surface-plasmon spectra in gold-island films potential for sensing applications

Fabrice Meriaudeau; Todd R. Downey; Ali Passian; Andrew Wig; Thomas L. Ferrell

doi:10.1364/AO.37.008030

Environment effects on surface-plasmon spectra in gold-island films potential for sensing applications

Fabrice Meriaudeau, Todd R. Downey, Ali Passian, Andrew Wig, Thomas L. Ferrell

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

53 Scopus citations

Abstract

The effects of the local dielectric environment on the surface-plasmon resonances of annealed gold-island films as a potential for sensing applications are studied experimentally and modeled theoretically. Gold-island films were annealed at 600 °C to produce spheroidal shape particles that exhibit wellresolved resonances in polarized, angle-resolved, absorption spectra. These resonances are shifted in different amounts by the depolarization effect of the surrounding medium (liquids with various refraction indices). Cross-section calculations based on nonretarded, single-particle, dielectric interaction for these various configurations are presented and are found to be in good agreement with the experimental observations. The results show an interesting potential for biosensing or environmental monitoring applications.

Original language	English
Pages (from-to)	8030-8037
Number of pages	8
Journal	Applied Optics
Volume	37
Issue number	34
DOIs	https://doi.org/10.1364/AO.37.008030
State	Published - Dec 1 1998
Externally published	Yes

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title = "Environment effects on surface-plasmon spectra in gold-island films potential for sensing applications",

abstract = "The effects of the local dielectric environment on the surface-plasmon resonances of annealed gold-island films as a potential for sensing applications are studied experimentally and modeled theoretically. Gold-island films were annealed at 600 °C to produce spheroidal shape particles that exhibit wellresolved resonances in polarized, angle-resolved, absorption spectra. These resonances are shifted in different amounts by the depolarization effect of the surrounding medium (liquids with various refraction indices). Cross-section calculations based on nonretarded, single-particle, dielectric interaction for these various configurations are presented and are found to be in good agreement with the experimental observations. The results show an interesting potential for biosensing or environmental monitoring applications.",

author = "Fabrice Meriaudeau and Downey, {Todd R.} and Ali Passian and Andrew Wig and Ferrell, {Thomas L.}",

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AU - Meriaudeau, Fabrice

AU - Downey, Todd R.

AU - Passian, Ali

AU - Wig, Andrew

AU - Ferrell, Thomas L.

PY - 1998/12/1

Y1 - 1998/12/1

N2 - The effects of the local dielectric environment on the surface-plasmon resonances of annealed gold-island films as a potential for sensing applications are studied experimentally and modeled theoretically. Gold-island films were annealed at 600 °C to produce spheroidal shape particles that exhibit wellresolved resonances in polarized, angle-resolved, absorption spectra. These resonances are shifted in different amounts by the depolarization effect of the surrounding medium (liquids with various refraction indices). Cross-section calculations based on nonretarded, single-particle, dielectric interaction for these various configurations are presented and are found to be in good agreement with the experimental observations. The results show an interesting potential for biosensing or environmental monitoring applications.

AB - The effects of the local dielectric environment on the surface-plasmon resonances of annealed gold-island films as a potential for sensing applications are studied experimentally and modeled theoretically. Gold-island films were annealed at 600 °C to produce spheroidal shape particles that exhibit wellresolved resonances in polarized, angle-resolved, absorption spectra. These resonances are shifted in different amounts by the depolarization effect of the surrounding medium (liquids with various refraction indices). Cross-section calculations based on nonretarded, single-particle, dielectric interaction for these various configurations are presented and are found to be in good agreement with the experimental observations. The results show an interesting potential for biosensing or environmental monitoring applications.

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DO - 10.1364/AO.37.008030

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JO - Applied Optics

JF - Applied Optics

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ER -

Environment effects on surface-plasmon spectra in gold-island films potential for sensing applications

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