Integrated and portable magnetometer based on nitrogen-vacancy ensembles in diamond

• URL: http://arxiv.org/abs/2012.01053v1
• Date: Wed, 2 Dec 2020 09:49:23 GMT
• Title: Integrated and portable magnetometer based on nitrogen-vacancy ensembles in diamond
• Authors: Felix M. St\"urner, Andreas Brenneis, Thomas Buck, Julian Kassel, Robert R\"olver, Tino Fuchs, Anton Savitsky, Dieter Suter, Jens Grimmel, Stefan Hengesbach, Michael F\"ortsch, Kazuo Nakamura, Hitoshi Sumiya, Shinobu Onoda, Junichi Isoya, Fedor Jelezko
• Abstract summary: Negatively charged nitrogen-vacancy centers in diamond have emerged as a promising high sensitivity platform for measuring magnetic fields at room temperature. Here, we demonstrate a fiber-based NV magnetometer featuring a complete integration of all functional components without using any bulky laboratory equipment.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Magnetic field sensors that exploit quantum effects have shown that they can outperform classical sensors in terms of sensitivity enabling a range of novel applications in future, such as a brain machine interface. Negatively charged nitrogen-vacancy (NV) centers in diamond have emerged as a promising high sensitivity platform for measuring magnetic fields at room temperature. Transferring this technology from laboratory setups into products and applications, the total size of the sensor, the overall power consumption, and the costs need to be reduced and optimized. Here, we demonstrate a fiber-based NV magnetometer featuring a complete integration of all functional components without using any bulky laboratory equipment. This integrated prototype allows portable measurement of magnetic fields with a sensitivity of 344 pT/ SqrtHz.

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