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Subnanotesla magnetometry with a fiber-coupled diamond sensor
Physical Review Applied ( IF 4.6 ) Pub Date : 
R. L. Patel, L. Q. Zhou, A. C. Frangeskou, G. A. Stimpson, B. G. Breeze, A. Nikitin, M. W. Dale, E. C. Nichols, W. Thornley, B. L. Green, M. E. Newton, A. M. Edmonds, M. L. Markham, D. J. Twitchen, G. W. Morley

Nitrogen vacancy centers (NVCs) in diamond are being explored for future quantum technologies, and in particular ensembles of NVC are the basis for sensitive magnetometers. We present a fiber-coupled NVC magnetometer with an unshielded sensitivity of (310±20)~pT/Hz in the frequency range of 10-150 Hz at room temperature. This takes advantage of low-strain 12C diamond, lenses for fiber-coupling and optimisation of microwave modulation frequency, modulation amplitude and power. Fiber coupling means the sensor can be conveniently brought within 2 mm of the object under study.

中文翻译:

带有光纤耦合金刚石传感器的Subnanotesla磁力计

正在为未来的量子技术探索钻石中的氮空位中心(NVC),尤其是NVC的集合是灵敏磁力计的基础。我们提出了一种非屏蔽灵敏度为(310±20)〜/赫兹在室温下10-150 Hz的频率范围内。这利用了低应变的优势12C金刚石,用于光纤耦合和优化微波调制频率,调制幅度和功率的透镜。光纤耦合意味着可以将传感器方便地带入要研究的对象2 mm以内。
更新日期:2020-09-15
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