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Subnanotesla magnetometry with a fiber-coupled diamond sensor
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Patel, R. L., Zhou, L. Q., Frangeskou, Angelo, Stimpson, Guy, Breeze, Ben, Nikitin, A., Dale, M. W., Nichols, E. C., Thornley, W., Green, Ben, Newton, Mark E., Edmonds, A. M., Markham, M. L., Twitchen, D. J. and Morley, Gavin (2020) Subnanotesla magnetometry with a fiber-coupled diamond sensor. Physical Review Applied, 14 . 044058. doi:10.1103/PhysRevApplied.14.044058
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WRAP-Subnanotesla-magnetometry-fiber-coupled-diamond-sensor-Patel-2020.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (2464Kb) | Preview |
Official URL: http://dx.doi.org/10.1103/PhysRevApplied.14.044058
Abstract
Nitrogen-vacancy centers (NVCs) in diamond are being explored for future quantum technologies, and in particular ensembles of NVC are the basis for sensitive magnetometers. We present a fiber-coupled NVC magnetometer with an unshielded sensitivity of (310±20)pT/√Hz in the frequency range of 10–150 Hz at room temperature. This takes advantage of low-strain 12C diamond, lenses for fiber coupling and optimization of microwave modulation frequency, modulation amplitude, and power. Fiber coupling means the sensor can be conveniently brought within 2 mm of the object under study.
| Item Type: | Journal Article | |||||||||||||||||||||||||||
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| Subjects: | Q Science > QC Physics | |||||||||||||||||||||||||||
| Divisions: | Faculty of Science > Engineering Faculty of Science > Physics |
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| Library of Congress Subject Headings (LCSH): | Magnetic fields, Magnetometers, Magnetic materials -- Microscopy, Photon detectors , Nanophotonics | |||||||||||||||||||||||||||
| Journal or Publication Title: | Physical Review Applied | |||||||||||||||||||||||||||
| Publisher: | American Physical Society | |||||||||||||||||||||||||||
| ISSN: | 2331-7019 | |||||||||||||||||||||||||||
| Official Date: | 30 October 2020 | |||||||||||||||||||||||||||
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| Volume: | 14 | |||||||||||||||||||||||||||
| Article Number: | 044058 | |||||||||||||||||||||||||||
| DOI: | 10.1103/PhysRevApplied.14.044058 | |||||||||||||||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||||||||||||||
| Publication Status: | Published | |||||||||||||||||||||||||||
| Access rights to Published version: | Open Access | |||||||||||||||||||||||||||
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