Details

Autor(en) / Beteiligte

• Lalanne, P.
• Hugonin, J.P.
• Liu, H.T.
• Wang, B.

Titel

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

Ist Teil von

• Surface science reports, 2009-10, Vol.64 (10), p.453-469

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2009

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We review the properties of the surface waves that are scattered by two-dimensional sub- λ 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. We further 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.