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Single-shot vector magnetic measurements using synchronous coherent population trapping resonance in a feedback compensation system.
- Source :
-
Journal of Applied Physics . 11/14/2023, Vol. 134 Issue 18, p1-11. 11p. - Publication Year :
- 2023
-
Abstract
- We demonstrate a real-time, single-shot vector magnetic measurement technique using synchronous coherent population trapping (SCPT) in an apparatus consisting of a small rubidium vapor cell. Vector modality of our magnetometer is enabled by designing a feedback system based on performing a peak-lock on a particularly strong 2 Ω L magnetic resonance produced in the SCPT spectrum and compensating the external magnetic field via a three-axis field coil. With its current design, this magnetometer exhibits high sensitivities of approximately 155 , 129 , and 57 pT / Hz in measuring the magnetic field vector components along the (x,y,z) axes. Sensitivities closer to the shot-noise limit can be achieved in the future by reducing the technical noise of our equipment and by employing a differential detection and polarization rotation measurement scheme in our system. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 134
- Issue :
- 18
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 173612996
- Full Text :
- https://doi.org/10.1063/5.0168122