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Micromachines 2018, 9(6), 276; https://doi.org/10.3390/mi9060276

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

1
Institut für Physik, Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany
2
CNRS, UMR 6082 FOTON, Enssat, 6 rue de Kerampont, CS 80518, 22305 Lannion CEDEX, France
3
Helmholtz Institut Mainz, 55099 Mainz, Germany
4
Institute for Materials Research (IMO), Hasselt University, Wetenschapspark 1, B-3590 Diepenbeek, Belgium
5
MIT Lincoln Laboratory, Lexington, MA 02420, USA
6
Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
7
Department of Physics, University of California, Berkeley, CA 94720-7300, USA
8
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)
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Abstract

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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