Efficient collinear third-harmonic generation in a single two-dimensional nonlinear photonic crystal

Abstract

We propose novel multi-phase-matched process that starts with generation of a pair of symmetric second-harmonic waves. Each of them interacts again with the fundamental wave to produce two constructively interfering third harmonic waves collinear to the fundamental input wave.Comment: Summary of presentation at the IQEC/LAT-2002 conferenc