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

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review


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.

Original languageEnglish
Article number211102
JournalApplied Physics Letters
Issue number21
Publication statusPublished - 18. Nov 2013


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