Surface acoustic wave(SAW)resonators offer distinct advantages for coupling to semiconductor qubits,including low loss,high stability,and compatibility with magnetic fields.However,the integration of SAW resonators wi...Surface acoustic wave(SAW)resonators offer distinct advantages for coupling to semiconductor qubits,including low loss,high stability,and compatibility with magnetic fields.However,the integration of SAW resonators with double quantum dots(DQDs)that host charge and spin qubits remains largely unexplored.In this work,we propose a flip-chip architecture that enables three-dimensional integration of a semiconductor DQD with a SAW resonator.Taking experimental feasibility into account,we estimate the coupling strength between a DQD and a SAW resonator.The results suggest that the strong coupling regime can be reached in our design.This study provides theoretical insight and practical guidance for experimental exploration of phonon–electron coupling in hybrid SAW-DQD quantum systems.展开更多
硫系玻璃因其宽红外透过范围、高声光品质因数等特点,成了低功耗高性能声光调制器的理想工作介质,有望突破传统介质声光调制器在效率与功耗方面的局限。以宽红外透过范围、高折射率的Ge_(21)Sb_(18)S_(61)硫系玻璃为研究对象,系统分析...硫系玻璃因其宽红外透过范围、高声光品质因数等特点,成了低功耗高性能声光调制器的理想工作介质,有望突破传统介质声光调制器在效率与功耗方面的局限。以宽红外透过范围、高折射率的Ge_(21)Sb_(18)S_(61)硫系玻璃为研究对象,系统分析了其热学、物理、光学及声学性能,并基于此成功研制出高性能光纤声光调制器。实验结果表明,在0.52 W射频驱动功率下,该调制器衍射效率达84%,上升时间为41 ns,消光比高达61 d B,展现出低功耗、高效率的优异性能。该声光调制器的研制为新型声光器件的设计与开发提供了重要技术支撑,对推动高速光通信、光纤传感等领域的应用具有重要意义。展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.12274401,12274397,12034018)the National Key Research and Development Program of China(Grant No.2022YFA1405900)the Natural Science Foundation of Jiangsu Province(Grant No.BK20240123)。
文摘Surface acoustic wave(SAW)resonators offer distinct advantages for coupling to semiconductor qubits,including low loss,high stability,and compatibility with magnetic fields.However,the integration of SAW resonators with double quantum dots(DQDs)that host charge and spin qubits remains largely unexplored.In this work,we propose a flip-chip architecture that enables three-dimensional integration of a semiconductor DQD with a SAW resonator.Taking experimental feasibility into account,we estimate the coupling strength between a DQD and a SAW resonator.The results suggest that the strong coupling regime can be reached in our design.This study provides theoretical insight and practical guidance for experimental exploration of phonon–electron coupling in hybrid SAW-DQD quantum systems.
文摘硫系玻璃因其宽红外透过范围、高声光品质因数等特点,成了低功耗高性能声光调制器的理想工作介质,有望突破传统介质声光调制器在效率与功耗方面的局限。以宽红外透过范围、高折射率的Ge_(21)Sb_(18)S_(61)硫系玻璃为研究对象,系统分析了其热学、物理、光学及声学性能,并基于此成功研制出高性能光纤声光调制器。实验结果表明,在0.52 W射频驱动功率下,该调制器衍射效率达84%,上升时间为41 ns,消光比高达61 d B,展现出低功耗、高效率的优异性能。该声光调制器的研制为新型声光器件的设计与开发提供了重要技术支撑,对推动高速光通信、光纤传感等领域的应用具有重要意义。
