Role of shape in middle-infrared transmission enhancement through periodically perforated metal films

We report experimental results on the role of aperture shape in middle-infrared enhanced transmission through a metal film perforated with a periodic aperture array. The transmission spectrum is highly dependent on the aperture shape. When the aperture shape changes from circular to cross-dipole or...

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Veröffentlicht in:	Optics letters 2007-11, Vol.32 (21), p.3140-3142
Hauptverfasser:	YE, Yong-Hong, WANG, Zhi-Bing, DESHENG YAN, ZHANG, Jia-Yu
Format:	Artikel
Sprache:	eng
Schlagworte:	Collective excitations (including excitons, polarons, plasmons and other charge-density excitations) Condensed matter: electronic structure, electrical, magnetic, and optical properties Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Exact sciences and technology Fundamental areas of phenomenology (including applications) Micro- and nanooptical devices Optics Physics Surface and interface electron states Wave optics Wave propagation, transmission and absorption
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