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Opt Express. 2012 Jul 30;20(16):18494-504. doi: 10.1364/OE.20.018494.

Optimization of broadband optical response of multilayer nanospheres.

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1
Department of Physics, Massachusetts Institute of Technology 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.

Abstract

We propose an optimization-based theoretical approach to tailor the optical response of silver/silica multilayer nanospheres over the visible spectrum. We show that the structure that provides the largest cross-section per volume/mass, averaged over a wide frequency range, is the silver coated silica sphere. We also show how properly chosen mixture of several species of different nanospheres can have an even larger minimal cross-section per volume/mass over the entire visible spectrum.

PMID:
23038399
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