Polarization-sensitive vector magnetometry using nitrogen-vacancy centers in diamond

TL;DR

This paper demonstrates a method to measure the vector components and polarization of AC magnetic fields using nitrogen-vacancy centers in diamond, enabling detailed magnetic environment analysis.

Contribution

It introduces a phase-sensitive technique with NV centers for vector and polarization-sensitive magnetometry, advancing magnetic field measurement capabilities.

Findings

Successfully measures vector components of AC magnetic fields

Determines magnetic field polarization using NV centers

Provides insights into magnetic environment properties

Abstract

By using an ensemble of nitrogen-vacancy (NV) centers, the vector components of a time-varying (AC) magnetic field are measured in a phase sensitive manner. This allows for the determination of the magnetic field's polarization. This polarization contains useful information about the nearby magnetic environment, such as the response of lossy or anisotropic materials, or the reactance of electrical currents.