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Surface electromagnetic field radiated by a subwavelength hole in a metal film

AuthorsNikitin, Alexey Y.; García-Vidal, F. J.; Martín-Moreno, Luis
Issue DateAug-2010
PublisherAmerican Physical Society
CitationPhysical Review Letters 105(7): 073902 (2010)
AbstractWe present an analytical expression for the electromagnetic field at the surface radiated by a hole in a metal film. This expression is valid for any metal, from the optical range to longer wavelengths, and for distances to the hole larger than a few tens of nanometers. The field pattern presents a rich behavior, showing three regions (a complex short distance, an intermediate range dominated by surface plasmon polaritons, and a long-distance one dominated by Norton waves). The crossover distances between these regimes depend strongly on both the wavelength and the angle with respect to the incident field.
Description4 páginas, 4 figuras.-- PACS numbers: 42.25.Bs, 41.20.Jb, 42.79.Ag, 78.66.Bz
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.105.073902
Appears in Collections:(ICMA) Artículos
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