Surface Electromagnetic Field Radiated by a Subwavelength Hole in a Metal Film

A. Yu. Nikitin, F. J. García-Vidal, and L. Martín-Moreno
Phys. Rev. Lett. 105, 073902 – Published 11 August 2010
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Abstract

We 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.

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  • Received 29 April 2010

DOI:https://doi.org/10.1103/PhysRevLett.105.073902

© 2010 The American Physical Society

Authors & Affiliations

A. Yu. Nikitin1,2,*, F. J. García-Vidal3, and L. Martín-Moreno1,†

  • 1Instituto de Ciencia de Materiales de Aragón and Departamento de Física de la Materia Condensada, CSIC-Universidad de Zaragoza, E-50009, Zaragoza, Spain
  • 2A. Ya. Usikov Institute for Radiophysics and Electronics, Ukrainian Academy of Sciences, 61085 Kharkov, Ukraine
  • 3Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain

  • *alexeynik@rambler.ru
  • lmm@unizar.es

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Issue

Vol. 105, Iss. 7 — 13 August 2010

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