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6CCVD Research

Wide-field diamond magnetometry with millihertz frequency resolution and nanotesla sensitivity

At a Glance

Section titled “At a Glance”
MetadataDetails
Publication Date2018-12-01
JournalAIP Advances
AuthorsKOSUKE MIZUNO, Makoto Nakajima, Hitoshi ISHIWATA, Yuta Masuyama, Takayuki Iwasaki
InstitutionsTokyo Institute of Technology, Japan Science and Technology Agency
Citations16

Abstract

Section titled “Abstract”

Wide-field quantum magnetometry using nitrogen-vacancy (NV) center in diamond can be a breakthrough for a nuclear magnetic resonance (NMR) in a small volume, which is important for biological applications. Although the coherence time of the electron spin of the NV center results in a limited frequency resolution for diamond magnetometry in the range 10-100 kHz, recent studies have shown that a phase-sensitive protocol can circumvent this limit using a confocal setup. We proposed a new measurement protocol, “iQdyne,” which facilitates an improved frequency resolution of wide-field imaging, unencumbered by the coherence limit imposed by the NV center. We demonstrated wide-field magnetometry with a frequency resolution of 238 mHz and a magnetic sensitivity of 65 nT/Hz1/2, which are superior to those obtained using a conventional XY8-based technique, and showed the potential of the iQdyne protocol for the wide-field NMR imaging.

Tech Support

Section titled “Tech Support”

Original Source

Section titled “Original Source”

References

Section titled “References”
  1. 2008 - High-sensitivity diamond magnetometer with nanoscale resolution [Crossref]
  2. 2016 - Single spin magnetic resonance [Crossref]
  3. 2015 - Broadband magnetometry and temperature sensing with a light trapping diamond waveguide [Crossref]
  4. 2015 - Subpicotesla diamond magnetometry [Crossref]
  5. 2016 - Optical magnetic detection of single-neuron action potentials using quantum defects in diamond [Crossref]
  6. 2011 - Magnetic field imaging with nitrogen-vacancy ensembles [Crossref]
  7. 2017 - Micrometer-scale magnetic imaging of geological samples using a quantum diamond microscope [Crossref]
  8. 2017 - Evaluating the paleomagnetic potential of single zircon crystals using the Bishop Tuff [Crossref]
  9. 2017 - Quantum imaging of current flow in graphene [Crossref]
  10. 2013 - Nuclear magnetic resonance spectroscopy on a (5-nanometer)3 sample volume [Crossref]

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