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Two-color coherent population trapping in a single Cs hyperfine transition, with application in magnetometry

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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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Authors and Affiliations

  1. Institute of Electronics, BAS, Boul. Tsarigradsko Shosse 72, 1784 Sofia, Bulgaria, , , , , , BG

    Ch. Andreeva, S. Cartaleva, Y. Dancheva & T. Karaulanov

  2. INFM UdR Siena – Department of Physics, University of Siena, Via Roma 56, 53100 Siena, Italy, , , , , , IT

    G. Bevilacqua, V. Biancalana, C. Marinelli, E. Mariotti & L. Moi

Authors
  1. Ch. Andreeva
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  2. G. Bevilacqua
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  3. V. Biancalana
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  4. S. Cartaleva
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  5. Y. Dancheva
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  6. T. Karaulanov
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  7. C. Marinelli
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  8. E. Mariotti
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  9. L. Moi
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Additional information

Received: 6 December 2002 / Revised version: 24 February 2003 / Published online: 2 June 2003

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ID="*"Corresponding author. Fax: +39-0577/23-4689, E-mail: biancalana@unisi.it

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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

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