Selective excitation of individual plasmonic hotspots at the tips of single gold nanostars

Calin Hrelescu; Tapan K. Sau; Andrey L. Rogach; Frank Jäckel; Guillaume Laurent; Ludovic Douillard; Fabrice Charra

doi:10.1021/nl103007m

Selective excitation of individual plasmonic hotspots at the tips of single gold nanostars

Calin Hrelescu, Tapan K. Sau, Andrey L. Rogach, Frank Jäckel, Guillaume Laurent, Ludovic Douillard, Fabrice Charra

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

181 Citations (Scopus)

Abstract

Plasmonic hotspots in single gold nanostars are located at the tips and can be excited selectively by laser light as evidenced by photoelectron emission microscopy. Selectivity is achieved through wavelength and polarization of the excitation light. Comparing photoelectron emission intensity and dark-field scattering spectra of the same individual nanostars reveals differences in terms of observable plasmon resonance wavelengths and field enhancements. Differences are explained with the underlying near- and far-field processes of the two techniques. © 2011 American Chemical Society.

Original language	English
Pages (from-to)	402-407
Journal	Nano Letters
Volume	11
Issue number	2
DOIs	https://doi.org/10.1021/nl103007m
Publication status	Published - 9 Feb 2011
Externally published	Yes

Research Keywords

dark-field white light Rayleigh scattering
gold nanostars
Nanoplasmonics
photoelectron emission microscopy

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title = "Selective excitation of individual plasmonic hotspots at the tips of single gold nanostars",

abstract = "Plasmonic hotspots in single gold nanostars are located at the tips and can be excited selectively by laser light as evidenced by photoelectron emission microscopy. Selectivity is achieved through wavelength and polarization of the excitation light. Comparing photoelectron emission intensity and dark-field scattering spectra of the same individual nanostars reveals differences in terms of observable plasmon resonance wavelengths and field enhancements. Differences are explained with the underlying near- and far-field processes of the two techniques. {\textcopyright} 2011 American Chemical Society.",

keywords = "dark-field white light Rayleigh scattering, gold nanostars, Nanoplasmonics, photoelectron emission microscopy",

author = "Calin Hrelescu and Sau, {Tapan K.} and Rogach, {Andrey L.} and Frank J{\"a}ckel and Guillaume Laurent and Ludovic Douillard and Fabrice Charra",

year = "2011",

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doi = "10.1021/nl103007m",

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T1 - Selective excitation of individual plasmonic hotspots at the tips of single gold nanostars

AU - Hrelescu, Calin

AU - Sau, Tapan K.

AU - Rogach, Andrey L.

AU - Jäckel, Frank

AU - Laurent, Guillaume

AU - Douillard, Ludovic

AU - Charra, Fabrice

PY - 2011/2/9

Y1 - 2011/2/9

N2 - Plasmonic hotspots in single gold nanostars are located at the tips and can be excited selectively by laser light as evidenced by photoelectron emission microscopy. Selectivity is achieved through wavelength and polarization of the excitation light. Comparing photoelectron emission intensity and dark-field scattering spectra of the same individual nanostars reveals differences in terms of observable plasmon resonance wavelengths and field enhancements. Differences are explained with the underlying near- and far-field processes of the two techniques. © 2011 American Chemical Society.

AB - Plasmonic hotspots in single gold nanostars are located at the tips and can be excited selectively by laser light as evidenced by photoelectron emission microscopy. Selectivity is achieved through wavelength and polarization of the excitation light. Comparing photoelectron emission intensity and dark-field scattering spectra of the same individual nanostars reveals differences in terms of observable plasmon resonance wavelengths and field enhancements. Differences are explained with the underlying near- and far-field processes of the two techniques. © 2011 American Chemical Society.

KW - dark-field white light Rayleigh scattering

KW - gold nanostars

KW - Nanoplasmonics

KW - photoelectron emission microscopy

UR - http://www.scopus.com/inward/record.url?scp=79851479646&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-79851479646&origin=recordpage

U2 - 10.1021/nl103007m

DO - 10.1021/nl103007m

M3 - RGC 21 - Publication in refereed journal

C2 - 21244014

SN - 1530-6984

VL - 11

SP - 402

EP - 407

JO - Nano Letters

JF - Nano Letters

IS - 2

ER -

Selective excitation of individual plasmonic hotspots at the tips of single gold nanostars

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Research Keywords

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