English

Free-space quasi-phase matching

Optics 2026-04-10 v2

Abstract

We report a new approach to phase matching of nonlinear materials based on the free space multipass cells. This concept quasi-phase matches crystalline quartz and increases the second harmonic generation efficiency by a factor 40.

Keywords

Cite

@article{arxiv.2209.06207,
  title  = {Free-space quasi-phase matching},
  author = {Nazar Kovalenko and Victor Hariton and Kilian Fritsch and Oleg Pronin},
  journal= {arXiv preprint arXiv:2209.06207},
  year   = {2026}
}
R2 v1 2026-06-28T01:14:10.220Z