Spontaneous emission in GaN/InGaN photonic crystal nanopillars

Aurélien David (1, 2) , Henri Benisty (1) , Claude Weisbuch (2)

1 Laboratoire Charles Fabry de l'Institut d'Optique / Naphel
2 Materials Department

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 higherindex 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.

Domains: Physics [physics]; Physics [physics]; Optics [physics.optics]

Aurélien David, Henri Benisty, Claude Weisbuch. Spontaneous emission in GaN/InGaN photonic crystal nanopillars. Optics Express, 2007, 15 (26), pp.17991-18004. ⟨hal-00868951⟩