Spontaneous emission in GaN/InGaN photonic crystal nanopillars.
We investigate the physics of spontaneous emission in a photonic crystal (PhC) made of GaN rods with embedded InGaN quantum wells, formed on a thick GaN layer. Although the PhC lies on a higher-index medium, we evidence the existence of unexpected quasi-guided Bloch modes which are strongly localized in the PhC region and possess a long lifetime. These modes determine the behavior of spontaneous emission such as the emission diagram and Purcell effect, as would happen in the usual case of emission in a PhC membrane.
David
Aurelien
A
Laboratoire Charles Fabry de l'Institut d'Optique, Campus Polytechnique, Palaiseau, France. aurelien.david@polytechnique.org
Benisty
Henri
H
Weisbuch
Claude
C
D003198:Computer Simulation; D017076:Computer-Aided Design; D003460:Crystallization / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005708:Gallium / Q000737:chemistry* / Q000528:radiation effects; D007204:Indium / Q000737:chemistry* / Q000528:radiation effects; D008027:Light; D008029:Lighting / Q000295:instrumentation*; D008956:Models, Chemical; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
D007204:Indium; C473348:gallium nitride; D005708:Gallium; C513701:indium nitride