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Keywords:

  • metamaterials;
  • surface plasmon resonance;
  • nanoimprinting;
  • plasmonics
Thumbnail image of graphical abstract

When a droplet hits the surface of water, it is often observed that a water column, or ‘back-jet’, surges upwards. Counterintuitive though it might be, a similar phenomenon can occur when ultrafast light pulses shine on a nanostructured metal surface. These sub-wavelength ‘nanojets’ occur in the regions of highest local field enhancements. For more details, see the article by V. K. Valev et al. on page OP29.