Journal
NANO LETTERS
Volume 8, Issue 1, Pages 31-35Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl071763o
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Optical excitation of surface plasmons in wet-chemically grown monocrystalline silver nanowires (similar to 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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