Plasmonic Mirrorless Optical Parametric Oscillator

Tal Schwartz*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We analyze a nondegenerate four-wave mixing process on a metal-dielectric interface in which the signal and idler waves are counter-propagating surface plasmons and the process is pumped by a free wave propagating in air. We show that, similarly to mirrorless parametric oscillations, above a certain threshold intensity of the pump, the system exhibits instability, which results in the spontaneous generation of plasmons propagating on the metal surface. Interestingly, we find that, in such a plasmonic nonlinear interaction, phase-matching is naturally fulfilled by the geometry of the process, allowing a broadband tunability of the output frequencies by varying the angle of incidence of the pump.

Original languageEnglish
Pages (from-to)4265-4269
Number of pages5
JournalACS Photonics
Issue number11
StatePublished - 21 Nov 2018


  • Surface plasmons
  • counter-propagating waves
  • four-wave mixing
  • parametric oscillations
  • surface nonlinearities


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