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Proceedings Paper

Enhancement of second harmonic in one-dimensional and two-dimensional epitaxial GaN-based photonic crystals
Author(s): Jeremi Torres; Gabriele Vecchi; Dominique Coquillat; Andrea Marco Malvezzi; Rene Legros; Jean Paul Lascaray; David Peyrade; Yong Chen; Marine Le Vassor d'Yerville; Emmanuel Centeno; David Cassagne; J. P. Albert; Richard M. De La Rue
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Paper Abstract

The second-harmonic field generated has been measured in reflection from the surface of one-dimensional and two-dimensional photonic crystals etched into a GaN layer. A very large second-harmonic enhancement is observed when simultaneously the incident beam at the fundamental frequency w excites a resonant Bloch mode and the second-harmonic field generated is coupled into a resonant Bloch mode at 2w. A smaller, but still substantially enhanced, second-harmonic generation level was also observed when the fundamental field was coupled into a resonant mode, while the second-harmonic field was not. By using calculated and experimental equifrequency surfaces, it is possible to identify the geometrical configurations that will allow quasi-phase matching to be satisfied - and observed experimentally in the available wavelength tuning range of the laser. The extended transparency window of III-nitride wide-bandgap semiconductors, coupled with large non linearities, is an appealing feature pointing towards the control and manipulation of light in photonic structures.

Paper Details

Date Published: 15 September 2004
PDF: 10 pages
Proc. SPIE 5450, Photonic Crystal Materials and Nanostructures, (15 September 2004); doi: 10.1117/12.545563
Show Author Affiliations
Jeremi Torres, Groupe d’Etude des Semiconducteurs, CNRS and Univ. Montpellier II (France)
Gabriele Vecchi, INFM and Univ. degli Studi di Pavia (Italy)
Dominique Coquillat, Groupe d’Etude des Semiconducteurs, CNRS and Univ. Montpellier II (France)
Andrea Marco Malvezzi, INFM and Univ. degli Studi di Pavia (Italy)
Rene Legros, Groupe d’Etude des Semiconducteurs, CNRS and Univ. Montpellier II (France)
Jean Paul Lascaray, Groupe d’Etude des Semiconducteurs, CNRS and Univ. Montpellier II (France)
David Peyrade, Groupe d’Etude des Semiconducteurs, CNRS and Univ. Montpellier II (France)
Yong Chen, Lab. de Photonique et de Nanostructures, CNRS (France)
Marine Le Vassor d'Yerville, Groupe d’Etude des Semiconducteurs, CNRS and Univ. Montpellier II (France)
Emmanuel Centeno, Groupe d’Etude des Semiconducteurs, CNRS and Univ. Montpellier II (France)
David Cassagne, Groupe d’Etude des Semiconducteurs, CNRS and Univ. Montpellier II (France)
J. P. Albert, Groupe d’Etude des Semiconducteurs, CNRS and Univ. Montpellier II (France)
Richard M. De La Rue, Univ. of Glasgow (United Kingdom)


Published in SPIE Proceedings Vol. 5450:
Photonic Crystal Materials and Nanostructures
Richard M. De La Rue; Pierre Viktorovitch; Clivia M. Sotomayor Torres; Michele Midrio, Editor(s)

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