Vector detection of AC magnetic fields by Nitrogen-Vacancy centers of single orientation in diamond

Abstract

Nitrogen-Vacancy (NV) centers in diamond have useful properties for detecting both AC and DC magnetic fields with high sensitivity at nano-scale resolution. Vector detection of AC magnetic fields can be achieved by using NV centers having three different orientations. Here, we propose a method to achieve this by using NV centers of single orientation. In this method, a static magnetic field is applied perpendicular to the NV axis, leading to strong mixing of the $m_s=-1$ and $1$ electron spin states. As a result, all three electron spin transitions of the triplet ground state have non-zero dipole moments, with each transition coupling to a single component of the magnetic field. This can be used to measure both strength and orientation of the applied AC field. To validate the technique, we perform a proof of principle experiment using a subset of ensemble NV centers in diamond, all having the same orientation.

arXiv comment7 pages, 5 figures

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Cited by in corpus (4)

• Imaging of microwave magnetic field orientation using continuous-wave experiments on nitrogen-vacancy centers in diamond
• Identifying optimal magnetic field configurations for decoherence mitigation of boron vacancies in hexagonal boron nitride
• Polarization-dependent topology in quantum emitter chains
• Interplay between dressed and strong-axial-field states in Nitrogen-Vacancy centers for quantum sensing and computation