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Keywords:

  • Second harmonic generation;
  • Nd3+-doped LiNbO3 laser;
  • Ferroelectric materials;
  • Nanoparticles, metal;
  • Localized surface plasmons
Thumbnail image of graphical abstract

Periodic arrays of silver nanoparticles on a Nd3+-doped periodically poled ferroelectric laser crystal are selectively self-assembled by photochemical methods. By exploiting the unique features of plasmonic nanostructures to concentrate electromagnetic fields, an enhancement of Nd3+ luminescence is demonstrated as well as a remarkable increase of the quadratic nonlinear second harmonic generation by a factor of 20, which occurs with the periodicity of the metallic arrays.