Surface plasmon propagation in microscale metal stripes
- 27 June 2001
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 79 (1), 51-53
- https://doi.org/10.1063/1.1380236
Abstract
Addressing the fundamental question of miniaturization of light guiding and routing towards nanoscale optics, we study experimentally surface plasmon propagation in silver and gold thin films of finite widths in the micrometer range. Spatially confined excitation of surface plasmons is realized by a prism coupling arrangement involving an opaque aluminum screen for a distinct separation of excitation and propagation (measurement) region. The surface plasmon propagation length as a function of film widths is measured by detecting stray light due to surface plasmon scattering with a conventional optical microscope.Keywords
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