Spontaneous emission in GaN/InGaN photonic crystal nanopillars

Opt Express. 2007 Dec 24;15(26):17991-8004. doi: 10.1364/oe.15.017991.

Abstract

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.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Computer Simulation
  • Computer-Aided Design
  • Crystallization / methods*
  • Equipment Design
  • Equipment Failure Analysis
  • Gallium / chemistry*
  • Gallium / radiation effects
  • Indium / chemistry*
  • Indium / radiation effects
  • Light
  • Lighting / instrumentation*
  • Models, Chemical*
  • Nanotechnology / instrumentation*
  • Nanotechnology / methods
  • Nanotubes / chemistry*
  • Nanotubes / ultrastructure
  • Reproducibility of Results
  • Sensitivity and Specificity

Substances

  • Indium
  • gallium nitride
  • Gallium
  • indium nitride