Journal article

A Bell-Bloom experiment with polarization-modulated light of arbitrary duty cycle

  • Fescenko, Ilja Physics Department, University of Fribourg, Switzerland - Laser Center of the University of Latvia, Riga, Latvia
  • Knowles, Paul E. Physics Department, University of Fribourg, Switzerland
  • Weis, Antoine Physics Department, University of Fribourg, Switzerland
  • Breschi, Evelina Physics Department, University of Fribourg, Switzerland
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    01.07.2013
Published in:
  • Optics Express. - 2013, vol. 21, no. 13, p. 15121–15130
English We report on a study of polarization-modulation experiments on the 4 → 3 hyperfine component of the D₁ transition in Cs vapor contained in a paraffin-coated cell. The laser beam’s polarization was switched between left- and right-circular polarization at a rate of 200 Hz. Variations of the transmitted light power were recorded while varying the amplitude of a transverse magnetic field. The power shows electromagnetically induced transparency (EIT) resonances when the atomic Larmor frequency matches a harmonic of the modulation frequency. We made a quantitative study of the resonance amplitudes with square-wave modulations of various duty cycles, and find an excellent agreement with recent algebraic model predictions.
Faculty
Faculté des sciences
Department
Physique
Language
  • English
Classification
Physics
License
License undefined
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Persistent URL
https://folia.unifr.ch/unifr/documents/303188
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