论文标题
使用基于Zeeman拆分的氮气散布中心的温度传感
Temperature sensing using nitrogen-vacancy centers with multiple-poly crystal directions based on Zeeman splitting
论文作者
论文摘要
我们展示了一种基于电子自旋的Zeeman分裂，以提高多聚钻石中含有负电荷的氮 - 固氮（NV）中心的温度的性能。阐明了与单个NV轴对应的共振峰的选择原理的理论模型，以确定温度依赖性。光谱线宽有效地狭窄，温度计对磁场波动不敏感。零场分裂（ZFS）参数D和温度t之间的关系校准的重复性和准确性在298 K至323 K范围内得到显着提高，并且系数DD/DT的结果为75.33 kHz/k。最后，该方法促进了我们设置的平均温度测量灵敏度（低于10 Hz），从0.49 K/Hz1/2到0.22 K/Hz1/2。
We demonstrate a novel method based on the Zeeman splitting of electronic spins to improve the performance for temperature sensing of negatively-charged nitrogen-vacancy (NV) centers in multiple-poly diamond. The theoretical model for selection principle of resonance peaks corresponding to a single NV axis for determining the temperature dependence is clarified. The spectral linewidth is effectively narrowed and the thermometer is insensitive to magnetic field fluctuations. Repeatability and accuracy of the relationship calibration between the zero-field splitting (ZFS) parameter D and temperature T in the range of 298 K to 323 K is significantly improved, and the results of coefficient dD/dT is 75.33 kHz/K. Finally, this method promotes the average temperature measurement sensitivity (below 10 Hz) of our setup from 0.49 K/Hz1/2 to 0.22 K/Hz1/2.
