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Volume 178, 2015
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Light emission in nonlocal plasmonic metamaterials

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Abstract

We present analytical and computational studies of light emission in nonlocal metamaterials formed by arrays of aligned plasmonic nanowires. We demonstrate that the emission lifetime in these composites is a complex function of geometrical and material parameters of the system that cannot be reduced to the “trivial” hyperbolic or elliptical dispersion topology of a homogenised metamaterial. In particular, our studies suggest that the Purcell factor can often be maximized when the composite operates in the elliptic regime, with strong radiation coupling to an additional TM-polarized mode supported by the nonlocal composite, in contrast to the accepted “hyperbolicity related” enhancement.

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Submitted
30 Sep 2014
Accepted
16 Oct 2014
First published
16 Oct 2014

Faraday Discuss., 2015,178, 61-70
Article type
Paper

Light emission in nonlocal plasmonic metamaterials

V. A. Podolskiy, P. Ginzburg, B. Wells and A. V. Zayats, Faraday Discuss., 2015, 178, 61
DOI: 10.1039/C4FD00186A

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