| Autor: |
Schwieger, S., Leipold, D., Ashall, B., Berndt, M., Zerulla, D., Runge, E. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 10/7/2009, Vol. 1176 Issue 1, p81-83, 3p, 1 Black and White Photograph, 2 Graphs |
| Abstrakt: |
The influence of nano-holes with three-fold symmetry on the excitation of surface plasmon polaritons (SPPs) at metallic nano-hole arrays is studied numerically for a quadratic array of rotor-shaped nano-holes cut into a silver film. It is found that the SPP-related minimum of the far-field reflectivity shifts as a function of the polarization angle of the incident light compared to rotational invariant hole-shapes. This was also reported in recent experiments. On contrast, the polarization angle for most efficient SPP-excitation is found to be independent of the nano-hole shape. We discuss optical near- and far-field properties of the considered structures. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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