论文标题
纤维积分碳化硅硅空位计
Fiber-integrated silicon carbide silicon vacancy-based magnetometer
论文作者
论文摘要
碳化硅中的硅空缺吸引了各种量子传感的关注。但是，以前的大多数实验都是使用共聚焦扫描系统实现的，这限制了其在实际应用中的应用。在这项工作中，我们在室温下演示了紧凑的纤维集成碳化硅空置载体磁力计。首先，我们有效地将微小硅片中的硅空缺与光纤尖端相结合，并同时通过纤维实现旋转信号的读数。然后，我们在不同的激光和微波功率下研究光学检测到的磁共振光谱，获得了优化的磁场灵敏度为12.3μT/Hz1/2。基于此，执行磁力计分别测量外部磁场的强度和极角。通过这些实验，我们为在地球物理和生物医学传感等实用环境中的基于硅空位的磁力计应用程序铺平了道路。
Silicon vacancy in silicon carbide has drawn much attention for various quantum sensing. However, most of the previous experiments are achieved using confocal scanning systems, which limit its applications in practical applications. In this work, we demonstrate a compact fiber-integrated silicon carbide silicon vacancy-based vector magnetometer at room temperature. First, we effectively couple the silicon vacancy in a tiny silicon carbide slice to an optical fiber tip and realize the readout of the spin signal through the fiber at the same time. We then study the optically detected magnetic resonance spectra at different laser and microwave powers, obtaining an optimized magnetic field sensitivity of 12.3 μT/Hz1/2. Based on this, the magnetometer is performed to measure the strength and polar angle of an external magnetic field, respectively. Through these experiments, we have paved the way for fiber-integrated silicon vacancy-based magnetometer applications in practical environments such as geophysics and biomedical sensing.
