Depolarized light scattering from colloidal gold nanoparticles

Krystyna Drozdowicz-Tomsia; Fang Xie; Nils Calander; Ignacy Gryczynski; Zygmunt Gryczynski; Ewa M. Goldys

doi:10.1016/j.cplett.2008.11.082

Depolarized light scattering from colloidal gold nanoparticles

Krystyna Drozdowicz-Tomsia, Fang Xie, Nils Calander, Ignacy Gryczynski, Zygmunt Gryczynski, Ewa M. Goldys

Microbiology, Immunology & Genetics

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

23 Scopus citations

Abstract

We present a study of depolarized light scattering from gold nanoparticles of various shapes and heterodispersity in aqueous solutions. The light scattering anisotropy for particles with average aspect ratio ∼1.2 and above 1.5 was measured experimentally and modelled theoretically. For elongated particles the anisotropy reaches the minimum value of about 0.5 in the spectral region 550-750 nm and its position corresponds to the maximum of the scattering component in the extinction spectra. Our work demonstrates the potential to distinguish plasmonic scattering from gold nanoparticles from the background Rayleigh scattering that is important for applications in sensing and imaging in turbid media.

Original language	English
Pages (from-to)	69-74
Number of pages	6
Journal	Chemical Physics Letters
Volume	468
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2008.11.082
State	Published - 13 Jan 2009

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author = "Krystyna Drozdowicz-Tomsia and Fang Xie and Nils Calander and Ignacy Gryczynski and Zygmunt Gryczynski and Goldys, {Ewa M.}",

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AU - Drozdowicz-Tomsia, Krystyna

AU - Xie, Fang

AU - Calander, Nils

AU - Gryczynski, Ignacy

AU - Gryczynski, Zygmunt

AU - Goldys, Ewa M.

PY - 2009/1/13

Y1 - 2009/1/13

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AB - We present a study of depolarized light scattering from gold nanoparticles of various shapes and heterodispersity in aqueous solutions. The light scattering anisotropy for particles with average aspect ratio ∼1.2 and above 1.5 was measured experimentally and modelled theoretically. For elongated particles the anisotropy reaches the minimum value of about 0.5 in the spectral region 550-750 nm and its position corresponds to the maximum of the scattering component in the extinction spectra. Our work demonstrates the potential to distinguish plasmonic scattering from gold nanoparticles from the background Rayleigh scattering that is important for applications in sensing and imaging in turbid media.

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VL - 468

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EP - 74

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Depolarized light scattering from colloidal gold nanoparticles

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