光子学报, 2019, 48 (8): 0827001, 网络出版: 2019-11-28
用于自然原子共振的应力量子调控自组装量子点单光子源
Strain-field-induced Energy Tuning for Self-assembled Quantum Dots-based Single-photon Sources Interfacing Atomic Transitions
量子存储 自组装量子点 单光子源 量子调控 应力调节 Quantum memory Self-assembled quantum dots Single-photon sources Quantum manipulation Strain tuning
摘要
上海市青年科技启明星计划(No.19QA1410600),上海市优秀学术带头人计划(No. 19XD1404600),中科院计划(No.Y82BRA1001)
Abstract
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.
李杨, 陶略, 甘甫烷, 张加祥. 用于自然原子共振的应力量子调控自组装量子点单光子源[J]. 光子学报, 2019, 48(8): 0827001. 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): 0827001.
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