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 April 26, 2024)
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High Bandwidth Optical Magnetometer
Published
Author(s)
, , , , 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
Keywords
Laser spectroscopy, Optical magnetometry, Optical pumping
Citation
Created November 28, 2012, Updated February 19, 2017