We demonstrate an electrically tunable two dimensional photonic crystal nanocavity containing InAs self assembled quantum dots. Photoluminescence and electroluminescence measurements are combined to probe the cavity mode structure and demonstrate a local electrical contact to the quantum dots. Measurements performed as a function of the electric field enable us to probe the capture, relaxation and recombination dynamics of photogenerated carriers inside the quantum dots emitting into a modified photonic environment. Furthermore, the two dimensional photonic crystal is probed by spatially dependent photocurrent spectroscopy indicating a 3.5x enhancement of the local radiative lifetime of the QDs inside the photonic crystal environment.
@article{arxiv.0709.2121,
title = {Electrically probing photonic bandgap phenomena in contacted defect nanocavities},
author = {F. Hofbauer and S. Grimminger and J. Angele and G. Böhm and R. Meyer and M. C. Amann and J. J. Finley},
journal= {arXiv preprint arXiv:0709.2121},
year = {2009}
}