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PUBLICATIONS

High Bandwidth Optical Magnetometer

Published

Author(s)

Ricardo Jimenez Martinez, William C. Griffith, Svenja A. Knappe, John E. Kitching, Mark Prouty

Abstract

We demonstrate a scalar 87Rb optical magnetometer that retains magnetic eld sensitivities below 10 pT/√Hz over 3dB bandwidths of 10 kHz in an ambient eld Bo = 11.4 microT and using a measurement volume of 1 mm3. The magnetometer operates at high atomic densities where both the sensitivity and bandwidth are limited by spin-exchange collisions between the alkali atoms. By operating in this regime our measurements show that the bandwidth of the magnetometer can be increased without a significant degradation in its sensitivity. The projected photon shot noise-limited sensitivity for the experimental parameters is 1 pT/√Hz, while the fundamental atom shot noise limit is 150 fT/√Hz.
Citation
The Journal of Optical Society of America B
Volume
29
Issue
12
Pub Type
Journals

Download Paper

Local Download

Keywords

Laser spectroscopy, Optical magnetometry, Optical pumping
Physics

Citation

Jimenez, R. , Griffith, W. , Knappe, S. , Kitching, J. and Prouty, M. (2012), High Bandwidth Optical Magnetometer, The Journal of Optical Society of America B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=910335 (Accessed October 13, 2025)

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Created November 28, 2012, Updated February 19, 2017
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