Highly efficient absorption of visible and near infrared light in convex gold and nickel grooves

Abstract:

The realization of nonresonant light absorption with nanostructured metal surfaces by making practical use of nanofocusing optical energy in tapered plasmonic waveguides, is of one of the most fascinating and fundamental phenomena in plasmonics [1, 2]. We recently realized broadband light absorption in gold via adiabatic nanofocusing of gap surface plasmon modes in well-defined geometries of ultra-sharp convex grooves and being excited by scattering off subwavelength-sized wedges [3].

Año de publicación:

2013

Keywords:

Fuente:

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