Surface plasmon mediated interference phenomena in low-q silver nanowire cavities |
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Authors: | Allione Marco Temnov Vasily V Fedutik Yuri Woggon Ulrike Artemyev Mikhail V |
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Affiliation: | Fachbereich Physik, Universit?t Dortmund, Otto-Hahn Strasse 4, 44221 Dortmund, Germany. |
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Abstract: | Optical excitation of surface plasmons in wet-chemically grown monocrystalline silver nanowires ( approximately 100 nm diameter and up to a few tens of micrometers length) is studied by broadband imaging spectroscopy. Surface plasmons excited by an incident light beam in the so-called Kretschmann-Raether configuration give optical interference phenomena in the spectral domain. These spectral oscillations are interpreted in terms of Fabry-Perot cavity modes for surface plasmons in silver nanowires and allow for a direct experimental determination of the surface plasmon group velocity and cavity losses. |
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