16 September 2016 Propagation properties of silver nanowires embedded in a substrate with gain
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The transmittance, reflectance and absorption of silver nanowires metamaterial embedded into a semiconductor matrix with optical gain are numerically investigated. Metamaterials may suffer from appreciable dissipative losses which are inherent for all plasmonic structures. The losses can significantly be reduced by introducing optical gain in the dielectric matrix by placing atomic or molecular impurities which are pumped by an external light source to create a population inversion. We numerically analyzed the optical properties when the semiconductor host material represents a gain medium. We calculate the transmittance, reflectance and absorption at normal incidence in the visible and near infrared ranges. We observed a peculiar behavior of their optical coefficients that can be explained by observing the field redistribution on the metamaterial.
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Joaquim Lima, Joaquim Lima, Jost Adam, Jost Adam, Davi Rego, Davi Rego, Vitaly Esquerre, Vitaly Esquerre, Vladimir Bordo, Vladimir Bordo, "Propagation properties of silver nanowires embedded in a substrate with gain", Proc. SPIE 9918, Metamaterials, Metadevices, and Metasystems 2016, 99182Q (16 September 2016); doi: 10.1117/12.2239005; https://doi.org/10.1117/12.2239005

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