Related Experiment Video
Updated: May 26, 2026

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
Published on: October 13, 2017
Inhibited spontaneous emission of quantum dots observed in a 3D photonic band gap
M D Leistikow1, A P Mosk, E Yeganegi
1Complex Photonic Systems, MESA+ Institute for Nanotechnology, University of Twente, 7500 AE Enschede, The Netherlands.
Abstract:
We present time-resolved emission experiments of semiconductor quantum dots in silicon 3D inverse-woodpile photonic band gap crystals. A systematic study is made of crystals with a range of pore radii to tune the band gap relative to the emission frequency. The decay rates averaged over all dipole orientations are inhibited by a factor of 10 in the photonic band gap and enhanced up to 2× outside the gap, in agreement with theory. We discuss the effects of spatial inhomogeneity, nonradiative decay, and transition dipole orientations on the observed inhibition in the band gap.
Related Concept Videos
Deactivation Processes: Jablonski Diagram
Photoluminescence: Fluorescence and Phosphorescence
A pair of electrons in a...
Photoluminescence: Applications
The de Broglie Wavelength

