Cerenkov-Type Second-Harmonic Generation in Two-Dimensional Nonlinear Photonic Structures
Academic Article
Overview
Research
Identity
Additional Document Info
Other
View All
Overview
abstract
We study the Cerenkov-type second-harmonic generation in several different two-dimensional nonlinear photonic structures formed in birefringent crystals with the 3m symmetry. Depending on the degree of birefringence, we observe either single or double Cerenkov-like second-harmonic rings. We discuss the properties of these parametrically generated rings and show that their sixfold azimuthal modulation is associated with the hexagonal symmetry of the individual ferroelectric domains. 2006 IEEE.