Superlens in the time domain
  It has been predicted theoretically and demonstrated experimentally that a planar slab supporting surface plasmons or surface phonon polaritons can behave as a super lens. However, the resolution is limited by the losses of the slab. In this letter, we point out that the resolution limit imposed by losses can be overcome by using time-dependent illumination. 
Alexandre Archambault, Mondher Besbes and Jean-Jacques Greffet
physics.optics cond-mat.mes-hall