Abstract
In this paper, we report on a substantial shift in the response of arrays of similarly sized Split Ring Resonators (SRRs), having a rectangular U-shaped form - and made respectively of aluminium and of gold. We also demonstrate that it is possible to obtain the polarization dependent LC peak in the visible spectrum - by using SRRs based on aluminium, rather than gold. The response of metallic SRRs scales linearly with size. At optical frequencies, metals stop behaving like nearly perfect conductors and begin displaying characteristically different behaviour, in accord with the Drude model.
Original language | English |
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Pages (from-to) | 3210-3218 |
Number of pages | 9 |
Journal | Optics Express |
Volume | 18 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1 Jan 2010 |
Keywords
- split ring resonators
- optics
- optical frequencies