Journal
OPTICS EXPRESS
Volume 19, Issue 6, Pages 5303-5312Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.005303
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- NanoSci E+ program [ANR-08-NSCI-007]
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The experimental observation of a one-dimensional evanescent wave supported by a 90 degrees metal edge is reported. Through a measurement of in-plane momenta, we clearly demonstrate the dimensional character of this surface wave and show that it is non-radiative in the superstrate. Excitation conditions, lateral extension and polarization properties of this wave are discussed. Finally, we explore the effect of the surrounding dielectric medium and demonstrate that a single edge can sustain distinct excitations. (C) 2011 Optical Society of America
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