All-angle phase matching condition and backward second-harmonic localization in nonlinear photonic crystals

Emmanuel Centeno (1) , Didier Felbacq (1) , David Cassagne (1)

1 GES - Groupe d'étude des semiconducteurs

We demonstrate an isotropic phase matching in properly designed nonlinear two-dimensional photonic crystals. In addition, by combining left- and right-handed properties at the fundamental and second-harmonic frequencies, we obtain a backward second-harmonic generation. These two properties lead to an unusual second-harmonic localization effect in perfect lattice photonic crystals.

Mots clés: GENERATION; GAN

Domaines: Autre [cond-mat.other]

Emmanuel Centeno, Didier Felbacq, David Cassagne. All-angle phase matching condition and backward second-harmonic localization in nonlinear photonic crystals. Physical Review Letters, 2007, 98, pp.263903. ⟨10.1103/PhysRevLett.98.263903⟩. ⟨hal-00437532⟩