Cavities embedded in photonic crystal waveguides offer a promising route towards large scale integration of coupled resonators for quantum electrodynamics applications. In this letter, we demonstrate a strongly coupled system formed by a single quantum dot and such a photonic crystal cavity. The resonance originating from the cavity is clearly identified from the photoluminescence mapping of the out-of-plane scattered signal along the photonic crystal waveguide. The quantum dot exciton is tuned towards the cavity mode by temperature control. A vacuum Rabi splitting of ~ 140 \mueV is observed at resonance.
@article{arxiv.1003.5185,
title = {Strongly coupled single quantum dot in a photonic crystal waveguide cavity},
author = {F. S. F. Brossard and X. L. Xu and D. A. Williams and M. Hadjipanayi and M. Hopkinson and X. Wang and R. A. Taylor},
journal= {arXiv preprint arXiv:1003.5185},
year = {2015}
}