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# Erratum: “Polarization-resolved extinction and scattering cross-sections of individual gold nanoparticles measured by wide-field microscopy on a large ensemble” [Appl. Phys. Lett. 102, 131107 (2013)]

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Applied Physics Letters

AIP Publishing

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### Polarization-resolved extinction and scattering cross-section of individual gold nanoparticles measured by wide-field microscopy on a large ensemble

,  ,   (2013)
We report a simple, rapid, and quantitative wide-field technique to measure the optical extinction $$\sigma_{\rm ext}$$ and scattering $$\sigma_{\rm sca}$$ cross-section of single nanoparticles using wide-field microscopy enabling simultaneous acquisition of hundreds of nanoparticles for statistical analysis. As a proof of principle, we measured nominally spherical gold nanoparticles of 40\,nm and 100\,nm diameter and found mean values and standard deviations of $$\sigma_{\rm ext}$$ and $$\sigma_{\rm sca}$$ consistent with previous literature. Switching from unpolarized to linearly polarized excitation, we measured $$\sigma_{\rm ext}$$ as a function of the polarization direction, and used it to characterize the asphericity of the nanoparticles. The method can be implemented cost-effectively on any conventional wide-field microscope and is applicable to any nanoparticles.
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### Author and article information

###### Journal
Applied Physics Letters
Appl. Phys. Lett.
AIP Publishing
0003-6951
1077-3118
May 29 2017
May 29 2017
: 110
: 22
: 229901
###### Article
10.1063/1.4984950