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Isotropic Scalar Quantum Sensing of Magnetic Fields for Industrial Application
Author(s) -
Staacke Robert,
John Roger,
Wunderlich Ralf,
Horsthemke Ludwig,
Knolle Wolfgang,
Laube Christian,
Glösekötter Peter,
Burchard Bernd,
Abel Bernd,
Meijer Jan
Publication year - 2020
Publication title -
advanced quantum technologies
Language(s) - English
Resource type - Journals
ISSN - 2511-9044
DOI - 10.1002/qute.202000037
Subject(s) - magnetometer , quantum sensor , magnetic field , nanodiamond , diamond , quantum , magnetic flux , microwave , nitrogen vacancy center , dependability , isotropy , superconductivity , sensitivity (control systems) , materials science , quantum technology , physics , optoelectronics , computational physics , optics , condensed matter physics , electronic engineering , open quantum system , computer science , engineering , quantum mechanics , software engineering , composite material
Magnetic field sensors based on quantum mechanic effects are often susceptible to misalignments of the magnetic field or need advanced procedures to compensate for these. Also, the record breaking sensitivities reported for superconducting quantum interference devices and alkali vapor magnetometers come along with large and complex experimental setups. The nitrogen vacancy center in diamond can be used to design a simple, small, and robust sensor without employing microwave radiation. By using compressed nanodiamond particles, it is possible to eliminate the need of an alignment of the magnetic field and still obtain the absolute magnetic flux density in a single measurement. In order to demonstrate the capabilities of this approach, a centimeter‐sized modified automotive demo board is employed as a complete sensor with a sensitivity of 78 μ T/ Hz .