Optical Magnetic Response in a Single Metal Nanobrick
  Anti-symmetric localized surface plasmons are demonstrated on a single silver nanostrip sandwiched by SiC layers. By employing the resonance of anti-symmetric localized surface plasmons, we enable single metal nanobricks to produce optical magnetism, in the blue and violet light range, as well as in a part of the ultraviolet light range. The physical mechanism is explained. 
Jianwei Tang, Sailing He, (et al.)
physics.optics