Simultaneous excitation of fast and slow surface plasmon polaritons in a high dielectric contrast system
Appl. Phys. Lett. 92, 133101 (2008); doi:10.1063/1.2898210
Published 31 March 2008
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Surface plasmon polaritons propagating in a high dielectric contrast system are investigated numerically. Using frequency domain simulations, we show that a three layer system consisting of air–silicon (7 nm)–silver supports two different modes at the Ag–Si interface: a fast mode, which exhibits normal dispersion, and a slow mode, which exhibits anomalous dispersion. Near the Ag–Si surface plasmon polariton resonance frequency, surface waves with a wavelength of 25 nm are observed at a vacuum wavelength of 595 nm, equivalent to
f/24. The results show the possibility of exciting surface waves with extreme ultraviolet wavelengths using visible frequencies.
©2008 American Institute of Physics
f/24. The results show the possibility of exciting surface waves with extreme ultraviolet wavelengths using visible frequencies.
©2008 American Institute of Physics
| History: | Received 29 October 2007; accepted 10 February 2008; published 31 March 2008 |
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http://link.aip.org/link/?APPLAB/92/133101/1 |
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