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Full field imaging and spectroscopy of individual gold nanoparticles

Published online by Cambridge University Press:  10 July 2008

E. Absil ,
G. Tessier ,
D. Fournier ,
M. Gross  and
M. Atlan
E. Absil
Affiliation:
ESPCI, LPEM de la Ville de Paris, CNRS UPR5, Université Pierre et Marie Curie, Paris 6, 10, rue Vauquelin, 75231 Paris Cedex 05, France
G. Tessier*
Affiliation:
ESPCI, LPEM de la Ville de Paris, CNRS UPR5, Université Pierre et Marie Curie, Paris 6, 10, rue Vauquelin, 75231 Paris Cedex 05, France
D. Fournier
Affiliation:
ESPCI, LPEM de la Ville de Paris, CNRS UPR5, Université Pierre et Marie Curie, Paris 6, 10, rue Vauquelin, 75231 Paris Cedex 05, France
M. Gross
Affiliation:
ENS, LKB, CNRS UMR 8552, Université Pierre et Marie Curie, Paris 6, 24, rue Lhomond, 75231 Paris Cedex 05, France
M. Atlan
Affiliation:
ENS, LKB, CNRS UMR 8552, Université Pierre et Marie Curie, Paris 6, 24, rue Lhomond, 75231 Paris Cedex 05, France
*
[email protected]
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Abstract

Most applications involving metallic nanoparticle labelling necessitate both fast imaging and local spectroscopy of individual beads. We present an imaging method based on a guided laser illumination associated to spatial modulation which allows the detection of gold particles down to 10 nm. Using an imaging spectrometer and white incoherent illumination, the same system delivers individual spectroscopy of several gold beads simultaneously, allowing a fast and selective discrimination between individual metal particles and aggregates or dust.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 43 , Issue 2: Reliability in Electromagnetic Systems (IET) , August 2008 , pp. 155 - 158
Copyright
© EDP Sciences, 2008

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