Patterned nanoporous-gold thin layers: structure control and tailoring of plasmonic properties

Articolo

Data di Pubblicazione:

2012

Citazione:

Patterned nanoporous-gold thin layers: structure control and tailoring of plasmonic properties / Ruffato, Gianluca; Garoli, Denis; S., Cattarin; S., Barison; M., Natali; P., Canton; A., Benedetti; De Salvador, Davide; Romanato, Filippo. - In: MICROPOROUS AND MESOPOROUS MATERIALS. - ISSN 1387-1811. - 163:(2012), pp. 153-159. [10.1016/j.micromeso.2012.07.027]

Abstract:

Nanoporous gold (NPG) layers have been fabricated by silver leaching of Ag-Au alloys with different dealloying processes and working temperatures. Structural, compositional and optical properties of the different samples have been analyzed with several experimental techniques: scanning and transmission electron microscopy (SEM/TEM), electrochemical impedance spectroscopy (EIS). Rutherford back scattering (RBS), spectroscopic ellipsometry. A periodic pattern has been realized on samples surface with focused ion beam (FIB) lithography in order to exploit NPG metallic behavior for surface plasmon polaritons (SPPs) excitation. The plasmonic response of the several NPG gratings has been analyzed and related to structural properties and fabrication conditions. (C) 2012 Elsevier Inc. All rights reserved.

Tipologia CRIS:

Articolo su rivista

Keywords:

Nanoporous gold; Surface plasmon polaritons; Ag–Au alloys

Elenco autori: