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

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
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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.