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6CCVD Research

Microscale sensing with strongly interacting NV ensembles at high fields

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2025-10-16
JournalPhysical Review Research
AuthorsAinitze Biteri-Uribarren, Ana Martin, J. Casanova
InstitutionsUniversity of the Basque Country

Abstract

Section titled ā€œAbstractā€

Advances in sensing devices that utilize nitrogen-vacancy (NV) center ensembles in diamond are driving progress in microscale nuclear magnetic resonance spectroscopy. Utilizing quantum sensing techniques in the high-field regime significantly boosts sensitivity by increasing thermal polarization and improves spectral quality via enhanced energy shifts. Compatible with the latter, a straightforward manner to further raise sensor sensitivity is to increase NV concentration, although this intensifies detrimental dipole-dipole interactions among NVs. In this Letter, we present a method for detecting NMR signals in high-field scenarios while effectively suppressing dipole-dipole couplings in the NV ensemble. Thus, this approach enhances sensitivity by combining highly doped diamond substrates and elevated magnetic fields.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 1961 - The Principles of Nuclear Magnetism
  2. 2008 - Spin Dynamics: Basics of Nuclear Magnetic Resonance

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