Sequential Bayesian experiment design for optically detected magnetic resonance of nitrogen-vacancy centers.

ABSTRACT: In magnetometry using optically detected magnetic resonance of nitrogen vacancy (NV-) centers, we demonstrate more than one order-of-magnitude speed up with sequential Bayesian experiment design as compared with conventional frequency-swept measurements. The NV- center is an excellent platform for magnetometry with potential spatial resolution down to few nanometers and demonstrated single-defect sensitivity down to nT/Hz1/2. The NV- center is a quantum defect with spin S = 1 and coherence time up to several milliseconds at room temperature. Zeeman splitting of the NV- energy levels allows detection of the magnetic field via photoluminescence. We compare conventional NV- center photoluminescence measurements that use pre-determined sweeps of the microwave frequency with measurements using

SUBMITTER: Dushenko S 

PROVIDER: S-EPMC8191344 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature