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Achromatic lens based on a nanowire material with anomalous dispersion

Costa, J. ; Silveirinha, M. G.

Optics Express Vol. 20, Nº 13, pp. 13915 - 13922, June, 2012.

ISSN (print): 1094-4087
ISSN (online): 1094-4087

Journal Impact Factor: 3,488 (in 2014)

Digital Object Identifier: 10.1364/OE.20.013915

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Abstract
Achromatic doublets made of materials with normal dispersion
have been used for decades to minimize the effects of chromatic aberrations
inherent to single-glass optical lenses. Here, we propose a fundamentally
different solution to correct the chromatic aberrations based on a nanowire
metamaterial with low loss broadband anomalous dispersion in the visible
domain. It is theoretically and numerically shown that the proposed
metamaterial lens practically eliminates the chromatic aberrations for all the
colors of light, and may be an interesting alternative to conventional
achromatic doublets.