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Journal Articles Surface Science Reports Year : 2009

A microscopic view of the electromagnetic properties of sub-wavelength metallic surfaces

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Abstract

We review the properties of the surface waves that are scattered by two-dimensional sub-wavelength indentations on metallic surfaces. We show that two distinct waves are involved, a surface plasmon polariton (SPP) and a quasi-cylindrical wave (quasi-CW). We discuss the main characteristics of these waves, their damping characteristic lengths and their relative excitation weights as a function of the separation distance from the indentation and as a function of the metal conductivity. In particular, we derive a closed-form expression for the quasi-CW, which clarifies its physical origin and its main properties.Wefurther present an intuitive microscopic model, which explains how the elementary SPPs and quasi-CWs exchange their energies by multiple scattering to build up a rich variety of near- and far-field optical effects.
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Dates and versions

hal-00570334 , version 1 (28-02-2011)

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  • HAL Id : hal-00570334 , version 1

Cite

Philippe Lalanne, Jean-Paul Hugonin, Haitao Liu, Bing Wang. A microscopic view of the electromagnetic properties of sub-wavelength metallic surfaces. Surface Science Reports, 2009, 64, pp.453-469. ⟨hal-00570334⟩
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