%0 Journal Article %T Giant second-harmonic generation due to quasi-phase matching in a one-dimensional GaN photonic crystal %+ Groupe d'étude des semiconducteurs (GES) %+ Laboratoire de photonique et de nanostructures (LPN) %A Torres, Jeremi %A Coquillat, Dominique %A Legros, Rene %A Lascaray, Jean-Paul %A Ruffenach, Sandra %A Briot, Olivier %A Aulombard, Roger %A Peyrade, D. %A Chen, Y. %A Le Vassor d'Yerville, Marine %A Centeno, Emmanuel %A Cassagne, David %A Albert, Jean-Paul %< avec comité de lecture %Z GES:03-014 %@ 0370-1972 %J physica status solidi (b) %I Wiley %V 240 %P 455-458 %8 2003 %D 2003 %R 10.1002/pssb.200303309 %K BAND-GAP %Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Journal articles %X We have demonstrated the giant enhancement of second-harmonic generation in a one-dimensional GaN photonic crystal structure caused by the simultaneous achievement of strong fundamental field confinement and quasi-phase matching conditions. We have firstly measured the linear dispersive properties of the resonant modes for various azimuthal directions to predict the quasi-phase matching conditions. The theory based on a rigorous scattering matrix method has provided a good description of the equi-frequency surfaces. We have then shown that the equi-frequency surfaces may be used to identify the angular situations for which the quasi-phase matching conditions can be satisfied. The SHG enhancement achieved due to the double resonance was 5000 times greater than for the unpatterned GaN layer. (C) 2003 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. %G English %L hal-00540469 %U https://hal.science/hal-00540469 %~ CNRS %~ UNIV-MONTP2 %~ GES %~ UNIV-MONTPELLIER %~ UM1-UM2