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Electrochemical restructuring of plasmonic metamaterials

Ruther, M. 1,2; Shao, L. H. 1,2; Linden, S. 1,2; Weissmüller, J. 1,2; Wegener, M. 1,2
1 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)
2 Center for Functional Nanostructures (CFN), Karlsruher Institut für Technologie (KIT)


Recent electrochemical experiments on gold-based photonic metamaterials have shown reversible optical modulation as well as an irreversible reduction in the plasmonic damping. Here, we systematically study the latter aspect as a possible means of postprocessing plasmonic gold nanoantennae arrays aiming at loss reduction. We characterize the samples by optical spectroscopy, electron microscopy, and atomic-force microscopy. For sub-10 nm gold thicknesses, the measured damping decreases by factors exceeding 3; for 20 nm thin structures, the obtained loss reduction still amounts to about 30%.

DOI: 10.1063/1.3533807
Zitationen: 10
Web of Science
Zitationen: 10
Zitationen: 10
Zugehörige Institution(en) am KIT Institut für Angewandte Physik (APH)
Institut für Nanotechnologie (INT)
Universität Karlsruhe (TH) – Interfakultative Einrichtungen (Interfakultative Einrichtungen)
Karlsruhe School of Optics & Photonics (KSOP)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2011
Sprache Englisch
Identifikator ISSN: 0003-6951
KITopen-ID: 1000027173
HGF-Programm 43.14.01 (POF II, LK 01) Photonics crystals and metamaterials
Erschienen in Applied Physics Letters
Verlag American Institute of Physics (AIP)
Band 98
Heft 1
Seiten 013112/1 - 3
Nachgewiesen in Web of Science
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