A pulsed lock-in method for ensemble nitrogen-vacancy center magnetometry

Jixing Zhang; Heng Yuan; Tianzheng Liu; Lixia Xu; Guodong Bian; Pengcheng Fan; Mingxin Li

A pulsed lock-in method for ensemble nitrogen-vacancy center magnetometry

Applied Physics 2021-01-08 v2 Quantum Physics

Authors: Jixing Zhang , Heng Yuan , Tianzheng Liu , Lixia Xu , Guodong Bian , Pengcheng Fan , Mingxin Li

Abstract

This article proposes a scheme for nitrogen-vacancy (NV) center magnetometry that combines the advantages of lock-in detection and pulse-type scheme. The optimal conditions, optimal sensitivity, and noise-suppression capability of the proposed method are compared with those of the conventional methods from both theoretical and simulation points of view. Through experimental measurements, a four-time improvement in sensitivity and 60-times improvement in minimum resolvable magnetic field (MRMF) was obtained. By using a confocal experiment setup, proposed scheme achieves a sensitivity of 3 nT/Hz1/2 and a MRMF of 100 pT.

Keywords

nitrogen-vacancy centers in diamond magnetometer magnetic resonance

Cite

@article{arxiv.2101.01986,
  title  = {A pulsed lock-in method for ensemble nitrogen-vacancy center magnetometry},
  author = {Jixing Zhang and Heng Yuan and Tianzheng Liu and Lixia Xu and Guodong Bian and Pengcheng Fan and Mingxin Li},
  journal= {arXiv preprint arXiv:2101.01986},
  year   = {2021}
}

A pulsed lock-in method for ensemble nitrogen-vacancy center magnetometry

Abstract

Keywords

Cite

Related papers