Inhibited spontaneous emission of quantum dots observed in a 3D photonic band gap
| 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 10x in the photonic band gap and enhanced up to 2x 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. |
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| Authors | M. D. Leistikow, A. P. Mosk, E. Yeganegi, S. R. Huisman, A. Lagendijk, and W. L. Vos |
| Year of publication | 2011 |
| Date published | 11/2011 |
| Journal | Phys. Rev. Lett. |
| Volume | 107 |
| Pages | 193903: 1-5 |
| Publisher | American Physical Society |
| Keywords | 3D photonic band gap, control, Fermi golden rule, photonic crystals, quantum dots, quantum optics, spontaneous emission |