Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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

Keywords

Laser spectroscopy, Optical magnetometry, Optical pumping

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 June 14, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created November 28, 2012, Updated February 19, 2017