Cerenkov-type second-harmonic generation with fundamental beams of different polarizations.
- Additional Document Info
- View All
We analyze the conical second-harmonic generation via Cerenkov-type phase matching in two-dimensional decagonal nonlinear photonic quasi-crystals for linear, circular, and elliptical polarized fundamental beams. Depending on the polarization state, we observe either centrosymmetric or noncentrosymmetric intensity modulation of the second-harmonic rings. We explain this effect by employing the concept of effective quadratic nonlinearity combined with the hexagonal symmetry of the individual ferroelectric domains.
author list (cited authors)
Sheng, Y., Saltiel, S. M., Krolikowski, W., Arie, A., Koynov, K., & Kivshar, Y. S.