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Keywords:

  • magnetoplasmonics;
  • rings;
  • magnetooptical activity;
  • multiresonant systems
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Au/Co/Au magnetoplasmonic nanorings present a bimodal spectral dependence of the magnetooptical activity, with maximum values in the visible and NIR regions. On page 612, the spectral positions of these maxima are tuned by F. Luo, A. Cebollada, and co-workers by modifying the structural parameters of the rings. This controlled modification of the magneto-optical activity of nanostructured systems may find interesting applications in areas like sensing, optical communications, and isolators.