Real-time magnetometry via coherent population trapping in a nitrogen vacancy center

Hailin Wang

doi:10.1117/12.2616771

9 March 2022 Real-time magnetometry via coherent population trapping in a nitrogen vacancy center

Hailin Wang

Proceedings Volume PC12016, Optical and Quantum Sensing and Precision Metrology II; PC1201627 (2022) https://doi.org/10.1117/12.2616771
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

We report the experimental demonstration of real-time magnetometry by detecting fluorescence from a nitrogen vacancy center in the setting of coherent population trapping and by estimating magnetic fields from the time series of the observed photon counts. We show that by taking into consideration the statistical properties of magnetic field fluctuations, a Bayesian inference-based estimator can effectively update dynamical information of the field in real time with the detection of just a single photon.

Conference Presentation

Citation Download Citation

Hailin Wang "Real-time magnetometry via coherent population trapping in a nitrogen vacancy center", Proc. SPIE PC12016, Optical and Quantum Sensing and Precision Metrology II, PC1201627 (9 March 2022); https://doi.org/10.1117/12.2616771

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