Spin coherence mapping of NV centers in diamond

TL;DR

This paper presents a method to create 2D maps of spin coherence in NV centers in diamond using optical imaging and microwave pulses, enhancing quantum sensing capabilities.

Contribution

It introduces a novel optical imaging protocol combined with microwave control to map NV center spin coherence in two dimensions.

Findings

Successful 2D mapping of NV spin coherence in diamond.

Demonstrated use of a regular CCD camera for quantum sensing.

Potential applications in high-resolution quantum sensing and imaging.

Abstract

In recent years, nitrogen-vacancy (NV) color centers in diamond have become excellent solid-state quantum sensors due to their electronic spin properties. Especially for their easy optical initialization and detection, together with their very large spin coherence at room temperature. Many studies have reported their use for sensing temperature, strain, electric fields, and mainly magnetic fields. Here, we show how to build a two-dimensional map of the electronic spin coherence of an ensemble of NV centers in ultra-pure diamond, using an optical imaging protocol combined with microwave pulses relying simply on a regular CCD camera.