| Author(s): |
Ricardo Jimenez Martinez; William C. Griffith; Svenja A. Knappe; John E. Kitching; Mark Prouty; |
| Title: |
High Bandwidth Optical Magnetometer |
| Published: |
November 28, 2012 |
| 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 |
| Pages: |
pp. 3395 - 3403 |
| Keywords: |
Laser spectroscopy;Optical magnetometry;Optical pumping |
| Research Areas: |
Physics |
