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arXiv · 1605.06046

Why the aspect ratio? Shape equivalence for the extinction spectra of gold nanoparticles

Doru Constantin
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Abstract

We compare the light extinction spectra of elongated gold nanoparticles with different shapes (cylinder, spherocylinder and ellipsoid) and sizes of 10 to 100~nm. We argue that the equivalence of the various moments of mass distribution is the natural comparison criterion -rather than the length-to-diameter (aspect) ratio generally used in the literature- and that it leads to better spectral correspondence between the various shapes.

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Doru Constantin. 2016-05-19. Why the aspect ratio? Shape equivalence for the extinction spectra of gold nanoparticles. https://doi.org/10.1140/epje%2Fi2015-15116-2

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