Resonance Fluorescence from Waveguide-Coupled, Strain-Localized, Two-Dimensional Quantum Emitters.
Resonance Fluorescence from Waveguide-Coupled, Strain-Localized, Two-Dimensional Quantum Emitters.
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DOI：
10.1021/acsphotonics.0c01653
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发表时间：
2021-04-21
期刊：
影响因子：
7
通讯作者：
Jöns KD
中科院分区：
文献类型：
--
作者：
Errando-Herranz C;Schöll E;Picard R;Laini M;Gyger S;Elshaari AW;Branny A;Wennberg U;Barbat S;Renaud T;Sartison M;Brotons-Gisbert M;Bonato C;Gerardot BD;Zwiller V;Jöns KD
单光子发射器的高效片上集成是光子集成电路在量子技术中应用的主要瓶颈。如果不是因为当前设备缺乏可扩展性，共振激发固态发射器正在成为接近最佳的量子光源。当前的集成方法依赖于光子集成电路中成本低效的单独发射器放置，这使得应用变得不可能。一个有前景的可扩展平台基于二维 (2D) 半导体。然而，波导耦合二维发射器的谐振激发和单光子发射已被证明是难以捉摸的。在这里，我们展示了一种可扩展的方法，使用氮化硅光子波导来同时对来自二硒化钨（WSe2）单层的单光子发射器进行应变局域化，并将它们耦合成波导模式。我们通过测量 g(2)(0) = 0.150 ± 0.093 的二阶自相关并执行片上谐振激发，产生 g(2)(0) = 0.377 ± 0.081，演示了光子电路中单光子的引导。我们的结果是实现量子态相干控制和在可扩展光子量子电路中高质量单光子复用的重要一步。
Efficient on-chip integration of single-photon emitters imposes a major bottleneck for applications of photonic integrated circuits in quantum technologies. Resonantly excited solid-state emitters are emerging as near-optimal quantum light sources, if not for the lack of scalability of current devices. Current integration approaches rely on cost-inefficient individual emitter placement in photonic integrated circuits, rendering applications impossible. A promising scalable platform is based on two-dimensional (2D) semiconductors. However, resonant excitation and single-photon emission of waveguide-coupled 2D emitters have proven to be elusive. Here, we show a scalable approach using a silicon nitride photonic waveguide to simultaneously strain-localize single-photon emitters from a tungsten diselenide (WSe2) monolayer and to couple them into a waveguide mode. We demonstrate the guiding of single photons in the photonic circuit by measuring second-order autocorrelation of g(2)(0) = 0.150 ± 0.093 and perform on-chip resonant excitation, yielding a g(2)(0) = 0.377 ± 0.081. Our results are an important step to enable coherent control of quantum states and multiplexing of high-quality single photons in a scalable photonic quantum circuit.
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影响因子：
10.8
作者：
Kumar S;Kaczmarczyk A;Gerardot BD
通讯作者：
Gerardot BD
影响因子：
10.8
作者：
Blauth, M.;Juergensen, M.;Kaniber, M.
通讯作者：
Kaniber, M.
影响因子：
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作者：
Lombardi, P.;Ovvyan, A. P.;Toninelli, C.
通讯作者：
Toninelli, C.
影响因子：
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作者：
Branny A;Kumar S;Proux R;Gerardot BD
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Gerardot BD
单层半导体中的单量子发射器
影响因子：
38.3
作者：
He, Yu-Ming;Clark, Genevieve;Pan, Jian-Wei
通讯作者：
Pan, Jian-Wei