We investigate the coherent population trapping effect occurring between the Zeeman sublevels of a given hyperfine state of Cs when excited by a single-mode diode laser, which is frequency modulated in the kHz-MHz range. In the presence of a dc magnetic field, simultaneous excitation of pairs of ground-state magnetic sublevels to common excited magnetic sublevels is performed. As a result, coherent population trapping resonance is detected at only a given modulation frequency, whose value gives a measure of the magnetic field. The parameters of the resonances are measured in order to determine the ultimate accuracy of the magnetic field measurement.
Andreeva, C., Bevilacqua, G., Biancalana, V., Cartaleva, S., Dancheva, Y., Karaulanov, T., et al. (2003). Two-color CPT in a Single Cs Hyperfine Transition, Application in Magnetometry. APPLIED PHYSICS. B, LASERS AND OPTICS, 76(6), 667-675 [10.1007/s00340-003-1163-1].
Two-color CPT in a Single Cs Hyperfine Transition, Application in Magnetometry
BEVILACQUA, G.;BIANCALANA, V.;DANCHEVA, Y.;MARINELLI, C.;MARIOTTI, E.;MOI, L.
2003-01-01
Abstract
We investigate the coherent population trapping effect occurring between the Zeeman sublevels of a given hyperfine state of Cs when excited by a single-mode diode laser, which is frequency modulated in the kHz-MHz range. In the presence of a dc magnetic field, simultaneous excitation of pairs of ground-state magnetic sublevels to common excited magnetic sublevels is performed. As a result, coherent population trapping resonance is detected at only a given modulation frequency, whose value gives a measure of the magnetic field. The parameters of the resonances are measured in order to determine the ultimate accuracy of the magnetic field measurement.File | Dimensione | Formato | |
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https://hdl.handle.net/11365/21584
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