Open AccessCollision induced magnetic resonance in Cesium atoms
Author(s) -
Guoqing Yang,
Hebin Zhang,
Xuxing Geng,
Shangqing Liang,
Yanyan Zhu,
Jing-tao Mao,
Guangming Huang,
Gaoxiang Li
Publication year - 2018
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.030313
Subject(s) - laser linewidth , atomic physics , magnetic field , resonance fluorescence , larmor precession , resonance (particle physics) , saturation (graph theory) , physics , population , amplitude , laser , nuclear magnetic resonance , optics , fluorescence , demography , mathematics , quantum mechanics , combinatorics , sociology
The radiofrequency-optical double magnetic resonance in cesium atoms filled in a vapor cell is investigated experimentally. One resonant signal involving spin-exchange collisions is observed in the M Z type magnetic resonance spectrum. We solve Liouville equations describing the dynamics of the system and analyze the role of the spin-exchange collisions in the atomic population distributions under resonant conditions. The theoretical calculations agree very well with the experimental results. In contrast with the normal magnetic resonance, the collision induced magnetic resonance exhibits the interesting saturation effect: both the signal amplitude and the signal linewidth are nearly constant when the laser intensity is above a moderate threshold value, which can be useful for precision measurements of the geomagnetic field.