Second-harmonic superprism effect in photonic crystals.
By exploitation of the nonlinear optical properties of two-dimensional photonic crystals, a second-harmonic superprism effect is demonstrated. The anisotropy of the dispersion curves allows control of the propagation direction of the second-harmonic field. Smooth variations of the fundamental wavelength or the angle of incidence produce a drastic angular shift of the second-harmonic emission.
Centeno
Emmanuel
E
Groupe d'Etude des Semiconducteurs, Unité Mixte de Recherche-Centre National de la Recherche Scientifique 5650, Université Montpellier II, Place E. Bataillon, CC074, 34095 Montpellier, France. centeno@ges.univ-montp2.fr