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Integrated and Portable Magnetometer Based on Nitrogen‐Vacancy Ensembles in Diamond
Author(s) -
Stürner Felix M.,
Brenneis Andreas,
Buck Thomas,
Kassel Julian,
Rölver Robert,
Fuchs Tino,
Savitsky Anton,
Suter Dieter,
Grimmel Jens,
Hengesbach Stefan,
Förtsch Michael,
Nakamura Kazuo,
Sumiya Hitoshi,
Onoda Shinobu,
Isoya Junichi,
Jelezko Fedor
Publication year - 2021
Publication title -
advanced quantum technologies
Language(s) - English
Resource type - Journals
ISSN - 2511-9044
DOI - 10.1002/qute.202000111
Subject(s) - magnetometer , diamond , quantum sensor , sensitivity (control systems) , magnetic field , power consumption , vacancy defect , materials science , exploit , optoelectronics , range (aeronautics) , computer science , power (physics) , electrical engineering , nanotechnology , electronic engineering , physics , embedded system , quantum , nuclear magnetic resonance , engineering , quantum computer , quantum simulator , composite material , computer security , quantum mechanics
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, a fiber‐based NV magnetometer featuring a complete integration of all functional components is demonstrated without using any bulky laboratory equipment. This integrated prototype allows portable measurement of magnetic fields with a sensitivity of 344   pT   Hz −1/2 .

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