Acta Photonica Sinica, Volume. 48, Issue 8, 827001(2019)
Strain-field-induced Energy Tuning for Self-assembled Quantum Dots-based Single-photon Sources Interfacing Atomic Transitions
In order to interface the self-assembled quantum dot light emitters and natural atoms towards quantum memory application, we designed and fabricated strain-field-induced energy-tunable single-photon sources by integrating quantum dots-containing nanimembrane onto a piezoelectric autcuator. A broad energy tuning range has been achieved for both visible GaAs/AlGaAs quantum dots (9.1 meV) and near infrared InGaAs/GaAs quantum dots (4.2 meV). Meanwhile, with this strain tuning technique, the exciton emission energy of GaAs/AlGaAs quantum dots and InGaAs/GaAs quantum dots can be tuned to be in resonance with the D2 absorption lines of rubidium 87 (780 nm) and the 4I9/2→4F3/2 transition of neodymium ions in solid-state YVO4 (879.7 nm) respectively. This result provides a powerful tuning technique for realizing compact quantum memories based on semiconductor quantum dots and natural atom ensembles.
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LI Yang, TAO Lüe, GAN Fu-wan, ZHANG Jia-xiang. Strain-field-induced Energy Tuning for Self-assembled Quantum Dots-based Single-photon Sources Interfacing Atomic Transitions[J]. Acta Photonica Sinica, 2019, 48(8): 827001
Received: May. 8, 2019
Accepted: --
Published Online: Nov. 28, 2019
The Author Email: Yang LI (ylee@mail.sim.ac.cn)