Simulation of ODMR Spectra from Nitrogen-Vacancy Ensembles in Diamond for Electric Field Sensing

• DOI: 10.48550/arxiv.2301.04106
• Publication Date: 2023-01-01
• Authors: Yuchun Zhu; Elena Losero; Christophe Galland; V. Goblot
• Keywords: Quantum sensor

Solid state spins in diamond, particular negatively charged nitrogen-vacancy centers (NV), are leading contenders the field of quantum sensing. While addressing single NVs offers nanoscale spatial resolution, many implementations benefit from using large ensembles to increase signal magnitude and therefore sensitivity. However, sensing with brings its own challenges given random orientation spin quantization axis within diamond crystal lattice. Here, we present an open source simulation tool that models influence arbitrary electric magnetic fields on electronic nuclear states NV ensembles, can be extended other color centers. Specifically, code computes transition strengths predicts sensitivity under shot-noise-limited optically-detected resonance. We illustrate use context sensing, a promising emerging functionality applications biosensing electronics, bring several subtle features light due interplay between different orientations external microwave fields. Moreover, show our used optimize situations where usual arguments based neglecting terms full Hamiltonian would give sub-optimal results. Finally, propose novel scheme which allows perform vector electrometry without need for precise bias alignment, thus reducing experimental complexity speeding up measurement procedure.