Title

Simultaneous excitation of fast and slow surface plasmon polaritons in a high dielectric contrast system

Authors

Authors

G. Webb-Wood;P. G. Kik

Comments

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Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

TUNNEL-JUNCTIONS; LIGHT-EMISSION; OPTICAL-CONSTANTS; MODE; Physics, Applied

Abstract

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 lambda(f)/24. The results show the possibility of exciting surface waves with extreme ultraviolet wavelengths using visible frequencies.

Journal Title

Applied Physics Letters

Volume

92

Issue/Number

13

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

3

WOS Identifier

WOS:000254669900069

ISSN

0003-6951

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