Plasmonic black gold based broadband polarizers for ultra-short laser pulses

E. Skovsen*, T. Søndergaard, C. Lemke, T. Holmgaard, T. Leißner, R. L. Eriksen, J. Beermann, Michael Bauer, K. Pedersen, S. I. Bozhevolnyi, Thomas Søndergaard

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Abstrakt

It has recently been demonstrated that adiabatic nanofocusing of light by gap-plasmon modes in ultra-sharp convex metal grooves can turn metallic surfaces with high reflectivity in the visible and near-infrared into excellent absorbers of light polarized perpendicular to the groove direction. Here we demonstrate that this effect can be used to design broadband linear polarizers, operating in reflection and inducing negligible dispersive stretching of ultra-short (5-10 fs) laser pulses.

OriginalsprogEngelsk
Artikelnummer211102
TidsskriftApplied Physics Letters
Vol/bind103
Udgave nummer21
ISSN0003-6951
DOI
StatusUdgivet - 18. nov. 2013

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