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 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.
- Received 23 May 2011
DOI:https://doi.org/10.1103/PhysRevLett.107.193903
© 2011 American Physical Society
Synopsis
No Permission for Emission
Published 3 November 2011
Spontaneous emission from stimulated quantum dots can be suppressed inside a crystal with a 3D photonic band gap.
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