Ultrafast vibrations of gold nanorings

T Kelf; Y Tanaka; O Matsuda; Elin Larsson; Duncan S Sutherland; Oliver Wright

Ultrafast vibrations of gold nanorings

T Kelf, Y Tanaka, O Matsuda, Elin Larsson, Duncan S Sutherland, Oliver Wright

Interdisciplinary Nanoscience Center

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

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Abstract

We investigate the vibrational modes of gold nanorings on a silica substrate with an ultrafast optical technique. By comparison with numerical simulations, we identify several resonances in the gigahertz range associated with axially symmetric deformations of the nanoring and substrate. We elucidate the corresponding mode shapes and find that the substrate plays an important role in determining the mode damping. This study demonstrates the need for a plasmonic nano-optics approach to understand the optical excitation and detection mechanisms for the vibrations of plasmonic nanostructures.

Original language	English
Journal	Nano Letters
Volume	11
Issue	9
Pages (from-to)	3893
Number of pages	3,898
ISSN	1530-6984
Publication status	Published - Sept 2011

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title = "Ultrafast vibrations of gold nanorings",

abstract = "We investigate the vibrational modes of gold nanorings on a silica substrate with an ultrafast optical technique. By comparison with numerical simulations, we identify several resonances in the gigahertz range associated with axially symmetric deformations of the nanoring and substrate. We elucidate the corresponding mode shapes and find that the substrate plays an important role in determining the mode damping. This study demonstrates the need for a plasmonic nano-optics approach to understand the optical excitation and detection mechanisms for the vibrations of plasmonic nanostructures. ",

author = "T Kelf and Y Tanaka and O Matsuda and Elin Larsson and Sutherland, {Duncan S} and Oliver Wright",

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T1 - Ultrafast vibrations of gold nanorings

AU - Kelf, T

AU - Tanaka, Y

AU - Matsuda, O

AU - Larsson, Elin

AU - Sutherland, Duncan S

AU - Wright, Oliver

PY - 2011/9

Y1 - 2011/9

N2 - We investigate the vibrational modes of gold nanorings on a silica substrate with an ultrafast optical technique. By comparison with numerical simulations, we identify several resonances in the gigahertz range associated with axially symmetric deformations of the nanoring and substrate. We elucidate the corresponding mode shapes and find that the substrate plays an important role in determining the mode damping. This study demonstrates the need for a plasmonic nano-optics approach to understand the optical excitation and detection mechanisms for the vibrations of plasmonic nanostructures.

AB - We investigate the vibrational modes of gold nanorings on a silica substrate with an ultrafast optical technique. By comparison with numerical simulations, we identify several resonances in the gigahertz range associated with axially symmetric deformations of the nanoring and substrate. We elucidate the corresponding mode shapes and find that the substrate plays an important role in determining the mode damping. This study demonstrates the need for a plasmonic nano-optics approach to understand the optical excitation and detection mechanisms for the vibrations of plasmonic nanostructures.

M3 - Journal article

SN - 1530-6984

VL - 11

SP - 3893

JO - Nano Letters

JF - Nano Letters

IS - 9

ER -

Ultrafast vibrations of gold nanorings

Abstract

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