Phonon-mediated coupling between quantum dots through an off-resonant microcavity

摘要

We present experimental results showing phonon-mediated coupling between twoquantum dots embedded inside a photonic crystal microcavity. With only one ofthe dots being spectrally close to the cavity, we observe both frequencyup-conversion and down-conversion of the pump light via a $\sim1.2$ THz phonon.We demonstrate this process for both weak and strong regimes of dot-cavitycoupling, and provide a simple theoretical model explaining our observations.