Quantum vector magnetometer based on the CPT effect in 87Rb vapour

V. Andryushkov; D. Radnatarov; S. Kobtsev; A. Dambuev

doi:10.1117/12.2568340

22 August 2020 Quantum vector magnetometer based on the CPT effect in 87Rb vapour

V. Andryushkov, D. Radnatarov, S. Kobtsev, A. Dambuev

Proceedings Volume 11507, Quantum Communications and Quantum Imaging XVIII; 115070N (2020) https://doi.org/10.1117/12.2568340
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Conference Poster

Abstract

Developed and characterised for the first time is a quantum vector magnetometer using coherent population trapping (CPT) in ⁸⁷Rb vapour and external magnetic field compensation by 3-axis Helmholtz coils to stabilize the amplitude and spectral position of the CPT resonance excited on a magneto-sensitive (m_f ≠ 0) energy level transition. To measure the magnetic field components orthogonal to the magnetometer optical axis, resonance amplitude dependence upon the transverse field strength is used, which has a maximum at zero transverse field. The proposed approach allowed measurement of the external magnetic field vector with a sensitivity exceeding 500 pT/Hz^1/2.

Citation Download Citation

V. Andryushkov, D. Radnatarov, S. Kobtsev, and A. Dambuev "Quantum vector magnetometer based on the CPT effect in 87Rb vapour", Proc. SPIE 11507, Quantum Communications and Quantum Imaging XVIII, 115070N (22 August 2020); https://doi.org/10.1117/12.2568340

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