Vector Magnetometry Based on Polarimetric Optically Detected Magnetic Resonance

Year: 2022

Authors: Reuschel P., Agio M., Flatae AM.

Autors Affiliation: Univ Siegen, Lab Nanoopt, Siegen, Germany; Univ Siegen, C Res Ctr Micro & Nanochem & Bio Technol, D-57072 Siegen, Germany; Natl Res Council CNR, Natl Inst Opt INO, I-50019 Sesto Fiorentino, Italy.

Abstract: A robust technique is introduced for vector magnetometry based on polarimetry and optically detected magnetic resonance of ensembles of negatively charged nitrogen-vacancy (NV-) centers in diamond without a magnetic bias field. Ensembles provide a far greater signal-to-noise ratio than single centers, and their creation requires less effort. Previous methods for vector magnetometry using ensembles of NV- centers relied on a calibrated magnetic bias field or on complex detection techniques to distinguish the crystal axes. Instead, this work uses out-of-plane polarized light to selectively excite NV- centers oriented along specific crystal axes. This approach is general for other spin-1 color centers with C3v$C_{3v}$ symmetry, and it is compatible with standard microscopy methods, such as scanning probe, superresolution, confocal, and wide-field imaging.

Journal/Review: ADVANCED QUANTUM TECHNOLOGIES

Volume: 5 (11)      Pages from:   to:

More Information: Open access funding enabled and organized by Projekt DEAL.
KeyWords: NV- center; optically detected magnetic resonance; polarimetry; vector magnetometry
DOI: 10.1002/qute.202200077

Citations: 11
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