Characterization of gold films by surface plasmon spectroscopy: Large errors and small consequences |
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Authors: | Adriana Rueda |
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Affiliation: | Max-Planck-Institut für Polymerforschung, Ackermannweg 10, D-55128 Mainz, Germany |
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Abstract: | Evaporated gold films have a smooth interface with their substrate and a rougher top surface. We investigate the optical response of such a film by excitation of surface plasmons both on the rough and on the smooth side. The smooth side, although polycrystalline, has an optical response that is very similar to a monocrystalline surface. The film can be modeled as two-layers with significantly different optical constants. For investigations on thin dielectric films though, this heterogeneity introduces only a negligible error. |
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Keywords: | Thin gold films Surface plasmons Roughness Template stripping |
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