Tunable low-loss plasmonic mirror for diffuse optical scattering

Rufina S A Sesuraj; Tristan L. Temple; Darren M. Bagnall

doi:10.1143/APEX.5.125205

Tunable low-loss plasmonic mirror for diffuse optical scattering

Rufina S A Sesuraj^*, Tristan L. Temple, Darren M. Bagnall

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

The influence of driving field interference on light scattering is demonstrated for arrays of randomly arranged silver nanodiscs near a silver mirror. The peak driving field intensity is spectrally tuned by varying the separation distance between the nanodisc array and the mirror, while the plasmonic resonance position is tuned by modifying the nanodisc diameter. Scattering is maximized when the resonance position coincides with the peak driving field intensity. The optimized plasmonic mirror exhibits 60% diffuse reflectance at a wavelength of 950nm with low (̃10-12%) broadband absorption losses, for 6% surface coverage of 200-nm-diameter nanodiscs on 110nm SiO₂.

Original language	English
Article number	125205
Pages (from-to)	125205-1-125205-3
Number of pages	3
Journal	Applied Physics Express
Volume	5
Issue number	12
DOIs	https://doi.org/10.1143/APEX.5.125205
Publication status	Published - Dec 2012

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title = "Tunable low-loss plasmonic mirror for diffuse optical scattering",

abstract = "The influence of driving field interference on light scattering is demonstrated for arrays of randomly arranged silver nanodiscs near a silver mirror. The peak driving field intensity is spectrally tuned by varying the separation distance between the nanodisc array and the mirror, while the plasmonic resonance position is tuned by modifying the nanodisc diameter. Scattering is maximized when the resonance position coincides with the peak driving field intensity. The optimized plasmonic mirror exhibits 60% diffuse reflectance at a wavelength of 950nm with low {\~(}10-12%) broadband absorption losses, for 6% surface coverage of 200-nm-diameter nanodiscs on 110nm SiO2.",

author = "Sesuraj, {Rufina S A} and Temple, {Tristan L.} and Bagnall, {Darren M.}",

year = "2012",

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doi = "10.1143/APEX.5.125205",

language = "English",

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AU - Temple, Tristan L.

AU - Bagnall, Darren M.

PY - 2012/12

Y1 - 2012/12

N2 - The influence of driving field interference on light scattering is demonstrated for arrays of randomly arranged silver nanodiscs near a silver mirror. The peak driving field intensity is spectrally tuned by varying the separation distance between the nanodisc array and the mirror, while the plasmonic resonance position is tuned by modifying the nanodisc diameter. Scattering is maximized when the resonance position coincides with the peak driving field intensity. The optimized plasmonic mirror exhibits 60% diffuse reflectance at a wavelength of 950nm with low (̃10-12%) broadband absorption losses, for 6% surface coverage of 200-nm-diameter nanodiscs on 110nm SiO2.

AB - The influence of driving field interference on light scattering is demonstrated for arrays of randomly arranged silver nanodiscs near a silver mirror. The peak driving field intensity is spectrally tuned by varying the separation distance between the nanodisc array and the mirror, while the plasmonic resonance position is tuned by modifying the nanodisc diameter. Scattering is maximized when the resonance position coincides with the peak driving field intensity. The optimized plasmonic mirror exhibits 60% diffuse reflectance at a wavelength of 950nm with low (̃10-12%) broadband absorption losses, for 6% surface coverage of 200-nm-diameter nanodiscs on 110nm SiO2.

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DO - 10.1143/APEX.5.125205

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JO - Applied Physics Express

JF - Applied Physics Express

SN - 1882-0778

IS - 12

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ER -

Tunable low-loss plasmonic mirror for diffuse optical scattering

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