All-angle phase matching condition and backward second-harmonic localization in nonlinear photonic crystals Auteur(s): Centeno Emmanuel, Felbacq D., Cassagne D. (Article) Publié: Physical Review Letters, vol. 98 p.263903 (2007) Ref HAL: hal-00437532_v1 PMID 17678092 DOI: 10.1103/PhysRevLett.98.263903 WoS: 000247625100024 Exporter : BibTex | endNote 26 Citations Résumé: 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. |