论文标题
基于二维HBN的纤维腔增强的单个光子发射的可调量子光子平台
Tunable quantum photonics platform based on fiber-cavity enhanced single photon emission from two-dimensional hBN
论文作者
论文摘要
实现量子光子设备需要将单个量子发射器耦合到光学谐振器的模式。在这项工作中，我们提出了一个混合系统，该系统由化学蒸气沉积和基于纤维的Fabry-Perrot腔种植的几层HBN中的缺陷中心组成。 HBN的低10 nm厚度及其光滑表面可以有效地整合到空腔模式中。我们在大于30 nm的宽光谱范围内运行混合平台，并使用其可调性探索不同的耦合机制。因此，由于空腔漏斗，我们达到了非常大的空腔辅助信号增强，高达50倍且同样强大的线宽缩小，这都是HBN-cavity Systems的记录。此外，我们为共振激发实施了激发和读数方案，使我们能够建立腔体辅助的PLE光谱。我们的工作标志着将2D材料与实用量子技术相结合的2D材料的重要里程碑。
Realization of quantum photonic devices requires coupling single quantum emitters to the mode of optical resonators. In this work we present a hybrid system consisting of defect centers in few-layer hBN grown by chemical vapor deposition and a fiber-based Fabry-Perot cavity. The sub 10 nm thickness of hBN and its smooth surface enables efficient integration into the cavity mode. We operate our hybrid platform over a broad spectral range larger than 30 nm and use its tuneability to explore different coupling regimes. Consequently, we achieve very large cavity-assisted signal enhancement up to 50-fold and equally strong linewidth narrowing owing to cavity funneling, both records for hBN-cavity systems. Additionally, we implement an excitation and readout scheme for resonant excitation that allows us to establish cavity-assisted PLE spectroscopy. Our work marks an important milestone for the deployment of 2D materials coupled to fiber-based cavities in practical quantum technologies.
