论文标题
具有可堆叠波导辅助检测通道的集成磁力测定平台，用于感应阵列
An integrated magnetometry platform with stackable waveguide-assisted detection channels for sensing arrays
论文作者
论文摘要
钻石的负电荷NV $^ - $ - 在纳米级表现出了巨大的成功，高敏性磁力测定法。有效的荧光检测对于提高灵敏度至关重要。此外，集成设备可实现可行的传感器。在这里，我们提出了一种新颖的体系结构，使我们能够创建NV $^ - $ - 在钻石表面以下几纳米的中心，同时在模式场中最大值的飞秒 - 二秒器写入类型-II型波导。我们通过实验验证耦合效率，通过波导展示磁共振信号的检测，并在磁场和温度传感中进行首次原则实验。传感任务可以通过波导操作，而无需通过样品直接照明光照明，这标志着在光线易碎的生物系统中磁力测定的重要步骤。将来，我们的方法将使二维传感阵列的发展在空间和时间相关的磁力测定方面促进。
The negatively-charged NV$^-$-center in diamond has shown great success in nanoscale, high-sensitivity magnetometry. Efficient fluorescence detection is crucial for improving the sensitivity. Furthermore, integrated devices enable practicable sensors. Here, we present a novel architecture which allows us to create NV$^-$-centers a few nanometers below the diamond surface, and at the same time in the mode field maximum of femtosecond-laser-written type-II waveguides. We experimentally verify the coupling efficiency, showcase the detection of magnetic resonance signals through the waveguides and perform first proof-of-principle experiments in magnetic field and temperature sensing. The sensing task can be operated via the waveguide without direct light illumination through the sample, which marks an important step for magnetometry in biological systems which are fragile to light. In the future, our approach will enable the development of two-dimensional sensing arrays facilitating spatially and temporally correlated magnetometry.
