Regensburg 2004 – wissenschaftliches Programm
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PV: Plenarvorträge
PV III
PV III: Plenarvortrag
Dienstag, 9. März 2004, 08:30–09:15, H1
Surface Plasmon Photoni — •L. Martín-Moreno1 and F. J. García-Vidal2 — 1Departamento de Física de la Materia Condensada, Universidad de Zaragoza, Spain — 2Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, Spain
In this talk we present an overview of the field of optical properties of (micro- and nano-) structured metals.
Metal surfaces are known to support electromagnetic modes, known as surface plasmons (SP). In corrugated surfaces SP’s couple strongly to radiation and, therefore, act as a sink of energy, which has traditionally seen as a drawback of metal structures for optical applications. However, in the last few years, advances in nano-fabrication have allowed the control of the corrugation in the metal. This has opened the possibility of using SP’s for efficient coupling to light (in- and out- the structure) and for transporting energy in a controlled way.
As example of these new capabilities we will present both experimental results and the theoretical description of properties such as the extraordinary transmission of light in arrays of sub-wavelength holes in a metal film, and the extraordinary transmission and beaming of light in single apertures flanked by surface corrugations.