%0 Journal Article
%T Enhanced second- and third-harmonic generation and induced photoluminescence in two-dimensional GaN photonic crystal
%+ Groupe d'étude des semiconducteurs (GES)
%A Coquillat, Dominique
%A Vecchi, Gabriele
%A Comaschi, Carlo
%A Marco Malvezzi, Andrea
%A Torres, Jérémi
%A Le Vassor d'Yerville, Marine
%Z Excellence Network PHOREMOST
%< avec comité de lecture
%@ 0003-6951
%J Applied Physics Letters
%I American Institute of Physics
%V 87
%P 101106
%8 2005
%D 2005
%Z Physics [physics]/Physics [physics]/General Physics [physics.gen-ph]Journal articles
%X We observed visible second-harmonic and ultraviolet third-harmonic fields generated in reflection from the surface of a two-dimensional triangular GaN/sapphire photonic crystal. When the pump radiation resonates with a photonic mode, enhancement factors as high as 250 and 3500 occurred for the second- and third-harmonic signals, respectively, as compared to the unpatterned GaN slab. The very large increase of third-harmonic field, with a photon energy exceeding that of the electronic band gap, was used as an efficient mechanism to induce GaN hotoluminescence.
%G English
%L hal-00390422
%U https://hal.science/hal-00390422
%~ CNRS
%~ UNIV-MONTP2
%~ GES
%~ UNIV-MONTPELLIER
%~ UM1-UM2