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Proceedings Paper

Towards a simple and performing CPT based magnetometer: optimization of experimental paramaters
Author(s): G. Bevilacqua; Valerio Biancalana; E. Breschi; Yordanka Dancheva; C. Marinelli; E. Mariotti; L. Moi; Ch. Andreeva; Todor Karaulanov; Stefka Cartaleva
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Paper Abstract

A simple set-up for observation of CPT effect at single hyperfine ground state excitation has been examined for application in measurements of non-vanishing magnetic fields. The CPT is prepared using low-frequency modulated (in the kHz range) diode laser. Magnetic field measurements down to 500 pT sensitivity and reproducibility were obtained for integration time of 30 ms. One of the important characteristics of the proposed methodology is a proper Cs excitation in order to overcome effectively the huperfine optical pumping effefct. This is possible working in narrow ranges of laser beam intensity, buffer gas pressures and Cs vapor densities. The best conditions have been experimentally determined and discussed.

Paper Details

Date Published: 22 April 2005
PDF: 9 pages
Proc. SPIE 5830, 13th International School on Quantum Electronics: Laser Physics and Applications, (22 April 2005); doi: 10.1117/12.617473
Show Author Affiliations
G. Bevilacqua, INFM, Univ. of Siena (Italy)
Valerio Biancalana, INFM, Univ. of Siena (Italy)
E. Breschi, INFM, Univ. of Siena (Italy)
Yordanka Dancheva, INFM, Univ. of Siena (Italy)
C. Marinelli, INFM, Univ. of Siena (Italy)
E. Mariotti, INFM, Univ. of Siena (Italy)
L. Moi, INFM, Univ. of Siena (Italy)
Ch. Andreeva, Institute of Electronics (Bulgaria)
Todor Karaulanov, Institute of Electronics (Bulgaria)
Stefka Cartaleva, Institute of Electronics (Bulgaria)

Published in SPIE Proceedings Vol. 5830:
13th International School on Quantum Electronics: Laser Physics and Applications
Peter A. Atanasov; Sanka V. Gateva; Lachezar A. Avramov; Alexander A. Serafetinides, Editor(s)

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