Magnetic-field-dependent photodynamics of single NV defects in diamond: an application to qualitative all-optical magnetic imaging

By Jean‐Philippe Tetienne, L. Rondin, P. Spinicelli, M. Chipaux, T. Debuisschert, J. Roch, V. Jacques. 2012

369 citations recorded by the source corpus.

Magnetometry and magnetic imaging with nitrogen–vacancy (NV) defects in diamond rely on the optical detection of electron spin resonance (ESR). However, this technique is inherently limited to magnetic fields that are weak enough to avoid electron spin mixing. Here, we focus on the high off-axis magnetic field regime where spin mixing alters the NV defect spin dynamics. We first study, in a quantitative manner, the dependence of the NV defect optical properties on the magnetic field vector B. Magnetic-field-dependent time-resolved photoluminescence (PL) measurements are compared to a seven-level model of the NV defect that accounts for field-induced spin mixing. The model reproduces decreases in (i) ESR contrast, (ii) PL intensity and (iii) excited level lifetime with an increasing off-axis magnetic field. We next demonstrate that these effects can be used to perform all-optical imaging of the magnetic field component |B⊥| orthogonal on the NV defect axis. Using a scanning NV defect microscope, we map the stray field of a magnetic hard disc through both PL and fluorescence lifetime imaging. This all-optical method for high magnetic field imaging at the nanoscale might be of interest in the field of nanomagnetism, where samples producing fields in excess of several tens of milliteslas are typically found.

Subfields: Atomic and Molecular Physics, and Optics, Geophysics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/0ac61e7a37f0256e2a999f98406c773cadd7888d

How researchers see this paper

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In Atomic and Molecular Physics, and Optics

1. M. Turner
2. J. Barry
3. J. Schloss
4. R. Walsworth
5. C. Hart
6. L. Pham
7. E. Bauch
8. A. Yacoby

In Geophysics

1. M. Turner
2. R. Walsworth
3. J. Schloss
4. J. Barry
5. C. Hart
6. L. Pham
7. E. Bauch

In Materials Chemistry

1. M. Turner
2. R. Walsworth
3. C. Hart
4. J. Schloss
5. J. Barry
6. L. Pham
7. E. Bauch
8. T. Sar

Citations in the corpus

• Probing condensed matter physics with magnetometry based on nitrogen-vacancy centres in diamond (2018, background): “The large fields generated by spin textures such as domain walls generally benefit image acquisition time, although they can also present a challenge, because a large component of the field perpendicular to the NV axis quenches the NV spin contrast (the tolerance for misalignment of the field with r”
• Sensitivity optimization for NV-diamond magnetometry (2019, methodology): “…simple and widely employed magnetometry method (Acosta et al., 2009; Barry et al., 2016; Dréau et al., 2011; Fuchs et al., 2008; Schloss et al., 2018; Schoenfeld and Harneit, 2011; Tetienne et al., 2012) wherein the MW driving and the optical polarization and readout occur simultaneously (see Fig.”