基于光致发光的磁场传感器的全光学读出方案

2020 IEEE Sensors Pub Date : 2020-10-25 DOI:10.1109/SENSORS47125.2020.9278923

L. Horsthemke, C. Bischoff, P. Glösekötter, B. Burchard, R. Staacke, J. Meijer

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引用次数: 0

摘要

提出了一种利用金刚石中氮空位进行全光磁测量的改进方法。该概念是基于高达≈50 mT的磁场对光泵浦氮空位的荧光衰减。衰减通过调制泵浦功率在光电探测器上产生恒定信号来记录。在500hz的采样频率下，灵敏度达到$2.6\mu {\text{T}}/\sqrt {{\text{Hz}}} $。

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All optical readout scheme for photoluminescence based magnetic field sensors

An improvement on a concept for all optical mag- netometry using nitrogen vacancies in diamond is presented. The concept is based on the fluorescence attenuation of optically pumped nitrogen vacancies by magnetic fields up to ≈ 50 mT. The attenuation is registered by modulating the pumping power to generate a constant signal at a photodetector. A sensitivity of $2.6\mu {\text{T}}/\sqrt {{\text{Hz}}} $ at a sampling frequency of 500 Hz is achieved.

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2020 IEEE Sensors

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