On-axis shaping of second-harmonic beams

Sivan Trajtenberg-Mills, Irit Juwiler, Ady Arie

Research output: Contribution to journalArticlepeer-review


We report complete spatial shaping (both phase and amplitude) of the second-harmonic beam generated in a nonlinear photonic crystal. Using a collinear second-order process in a nonlinear computer generated hologram imprinted on the crystal, the desired beam is generated on-axis and in the near field. This enables compact and efficient one-dimensional beam shaping in comparison to previously demonstrated off-axis Fourier holograms. We experimentally demonstrate the second-harmonic generation of high-order Hermite-Gauss, top hats and arbitrary skyline-shaped beams. A new design for photonic crystals based on non-linear computer generated holograms enables on-axis one dimensional shaping of the second harmonic beam in the near field. This method enables a compact and efficient manner of second harmonic beam shaping, and is demonstrated here for various beam shapes.

Original languageEnglish
Pages (from-to)L40-L44
JournalLaser and Photonics Reviews
Issue number6
StatePublished - 1 Nov 2015


  • Photonic crystals
  • Second-harmonic generation. holography

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics


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