Magnetic response of split ring resonators (SRRs) at visible frequencies

Basudev Lahiri, Scott G. McMeekin, Ali Z. Khokhar, Richard M. De La Rue, Nigel P. Johnson

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)


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 languageEnglish
Pages (from-to)3210-3218
Number of pages9
JournalOptics Express
Issue number3
Publication statusPublished - 1 Jan 2010


  • split ring resonators
  • optics
  • optical frequencies


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