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Micromachines 2018, 9(6), 276;

On the Possibility of Miniature Diamond-Based Magnetometers Using Waveguide Geometries

Institut für Physik, Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany
CNRS, UMR 6082 FOTON, Enssat, 6 rue de Kerampont, CS 80518, 22305 Lannion CEDEX, France
Helmholtz Institut Mainz, 55099 Mainz, Germany
Institute for Materials Research (IMO), Hasselt University, Wetenschapspark 1, B-3590 Diepenbeek, Belgium
MIT Lincoln Laboratory, Lexington, MA 02420, USA
Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Department of Physics, University of California, Berkeley, CA 94720-7300, USA
Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Received: 30 April 2018 / Revised: 28 May 2018 / Accepted: 28 May 2018 / Published: 1 June 2018
(This article belongs to the Special Issue Color Centers in Diamond: Fabrication, Devices and Applications)
Full-Text   |   PDF [2133 KB, uploaded 1 June 2018]   |  


We propose the use of a diamond waveguide structure to enhance the sensitivity of magnetometers relying on the detection of the spin state of nitrogen-vacancy ensembles in diamond by infrared optical absorption. An optical waveguide structure allows for enhanced optical path-lengths avoiding the use of optical cavities and complicated setups. The presented design for diamond-based magnetometers enables miniaturization while maintaining high sensitivity and forms the basis for magnetic field sensors applicable in biomedical, industrial and space-related applications. View Full-Text
Keywords: diamond-based magnetometer; NV-centers; compact sensor diamond-based magnetometer; NV-centers; compact sensor

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Bougas, L.; Wilzewski, A.; Dumeige, Y.; Antypas, D.; Wu, T.; Wickenbrock, A.; Bourgeois, E.; Nesladek, M.; Clevenson, H.; Braje, D.; Englund, D.; Budker, D. On the Possibility of Miniature Diamond-Based Magnetometers Using Waveguide Geometries. Micromachines 2018, 9, 276.

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