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.
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Received: 6 December 2002 / Revised version: 24 February 2003 / Published online: 2 June 2003
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Andreeva, C., Bevilacqua, G., Biancalana, V. et al. Two-color coherent population trapping in a single Cs hyperfine transition, with application in magnetometry . Appl Phys B 76, 667–675 (2003). https://doi.org/10.1007/s00340-003-1163-1
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DOI: https://doi.org/10.1007/s00340-003-1163-1