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Second harmonic generation in a photonic crystal
Martorell, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Vilaseca, Ramon (Universitat Politècnica de Catalunya. Department de Física i Enginyeria Nuclear)
Corbalán, R. (Ramón) (Universitat Autònoma de Barcelona. Departament de Física)
American Physical Society

Data: 1997
Resum: Phase matched second harmonic generation is observed experimentally in a centrosymmetric crystalline lattice of dielectric spheres of optical dimensions. The inversion symmetry is broken locally at the surface of each sphere in such a way that the scattered second harmonic light interferes constructively leading to a nonvanishing macroscopic field. Phase matching of the fundamental and second harmonic waves in such periodic lattice is observed to be naturally provided by the bending of the photondispersion curve at the edge of the Bragg reflection band of a given set of lattice planes.
Drets: Tots els drets reservats.
Llengua: Anglès
Document: article ; recerca ; publishedVersion
Matèria: Second harmonic generation ; Dielectrics ; Dispersion ; Inverse scattering ; Light scattering ; Photonic crystals ; Photons ; Surface scattering
Publicat a: Applied Physics Letters, Vol. 70, Issue 6 (February 1997) , p. 702-704, ISSN 1077-3118

DOI: 10.1063/1.118244

4 p, 296.7 KB

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