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Title: Broadband magnetometry by infrared-absorption detection of nitrogen-vacancy ensembles in diamond

Abstract

We demonstrate magnetometry by detection of the spin state of high-density nitrogen-vacancy ensembles in diamond using optical absorption at 1042 nm. With this technique, measurement contrast, and collection efficiency can approach unity, leading to an increase in magnetic sensitivity compared to the more common method of collecting red fluorescence. Working at 75 K with a sensor with effective volume 50x50x300 {mu}m{sup 3}, we project photon shot-noise limited sensitivity of 5 pT in one second of acquisition and bandwidth from dc to a few megahertz. Operation in a gradiometer configuration yields a noise floor of 7 nT{sub rms} at {approx}110 Hz in one second of acquisition.

Authors:
; ; ; ;  [1];  [1];  [2]
  1. Department of Physics, University of California, Berkeley, California 94720 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
21464540
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 97; Journal Issue: 17; Other Information: DOI: 10.1063/1.3507884; (c) 2010 American Institute of Physics
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; ABSORPTION; CRYSTALS; DIAMONDS; FLUORESCENCE; INFRARED SPECTRA; MAGNETIC FIELDS; NITROGEN; NOISE; OPERATION; PHOTONS; SENSITIVITY; SENSORS; SPIN; VACANCIES; ANGULAR MOMENTUM; BOSONS; CARBON; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELEMENTARY PARTICLES; ELEMENTS; EMISSION; LUMINESCENCE; MASSLESS PARTICLES; MINERALS; NONMETALS; PARTICLE PROPERTIES; PHOTON EMISSION; POINT DEFECTS; SORPTION; SPECTRA

Citation Formats

Acosta, V. M., Bauch, E., Jarmola, A., Zipp, L. J., Ledbetter, M. P., Budker, D., and Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, California 94720. Broadband magnetometry by infrared-absorption detection of nitrogen-vacancy ensembles in diamond. United States: N. p., 2010. Web. doi:10.1063/1.3507884.
Acosta, V. M., Bauch, E., Jarmola, A., Zipp, L. J., Ledbetter, M. P., Budker, D., & Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, California 94720. Broadband magnetometry by infrared-absorption detection of nitrogen-vacancy ensembles in diamond. United States. doi:10.1063/1.3507884.
Acosta, V. M., Bauch, E., Jarmola, A., Zipp, L. J., Ledbetter, M. P., Budker, D., and Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, California 94720. Mon . "Broadband magnetometry by infrared-absorption detection of nitrogen-vacancy ensembles in diamond". United States. doi:10.1063/1.3507884.
@article{osti_21464540,
title = {Broadband magnetometry by infrared-absorption detection of nitrogen-vacancy ensembles in diamond},
author = {Acosta, V. M. and Bauch, E. and Jarmola, A. and Zipp, L. J. and Ledbetter, M. P. and Budker, D. and Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, California 94720},
abstractNote = {We demonstrate magnetometry by detection of the spin state of high-density nitrogen-vacancy ensembles in diamond using optical absorption at 1042 nm. With this technique, measurement contrast, and collection efficiency can approach unity, leading to an increase in magnetic sensitivity compared to the more common method of collecting red fluorescence. Working at 75 K with a sensor with effective volume 50x50x300 {mu}m{sup 3}, we project photon shot-noise limited sensitivity of 5 pT in one second of acquisition and bandwidth from dc to a few megahertz. Operation in a gradiometer configuration yields a noise floor of 7 nT{sub rms} at {approx}110 Hz in one second of acquisition.},
doi = {10.1063/1.3507884},
journal = {Applied Physics Letters},
number = 17,
volume = 97,
place = {United States},
year = {Mon Oct 25 00:00:00 EDT 2010},
month = {Mon Oct 25 00:00:00 EDT 2010}
}