论文标题
NV中心钻石样品的微波加热效果
Microwave heating effect on diamond sample of NV centers
论文作者
论文摘要
带负电荷氮的缺陷的钻石样品（NV）中心有望提供固态自旋传感器，适用于量子信息处理，纳米级磁性，电气和热场的高敏感测量值。具有NV中心的钻石缺陷是独特的，因为其稳健的温度依赖性零场分裂DGS的三胞胎基态DGS。该特性通过使用微波共振从100 K到约600 K进行微波共振来实现电子自旋状态的光学读数。因此，禁止DGS不需要不需要的外部热扰动对于使用Diamond NV传感器进行精确测量至关重要。我们的观察结果表明，存在对NV中心钻石样品的显着微波加热效应。不可避免地会改变DGS并导致测量错误。由单调效应引起的温度增加取决于微波辐照的功率和持续时间。在连续模式和某些脉冲序列模式下的微波辐照时，这种效果显而易见，但对于量子锁定XY8-N方法是可以忽略的。
Diamond samples of defects with negative charged nitrogen-vacancy (NV) centers are promising solid state spin sensors suitable for quantum information processing, high sensitive measurements of magnetic, electric and thermal fields in nanoscale. The diamond defect with a NV center is unique for its robust temperature-dependent zero field splitting Dgs of the triplet ground state. This property enables optical readout of electron spin states through manipulation of the ground triplet state using microwave resonance with Dgs from 100 K to about 600 K. Thus, prohibiting Dgs from unwanted external thermal disturbances is crucial for an accurate measurement using diamond NV sensors. Our observation demonstrates the existence of a prominent microwave heating effect on the diamond samples of NV centers. The effect is inevitable to shift Dgs and cause measurement errors. The temperature increment caused by the effect monotonically depends on the power and the duration of microwave irradiation. The effect is obvious with the microwave irradiation in the continuous mode and some pulse sequence modes, but is neglectable for the quantum lock-in XY8-N method.
