A Bell-Bloom experiment with polarization-modulated light of arbitrary duty cycle
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Fescenko, Ilja
Physics Department, University of Fribourg, Switzerland - Laser Center of the University of Latvia, Riga, Latvia
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Knowles, Paul E.
Physics Department, University of Fribourg, Switzerland
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Weis, Antoine
Physics Department, University of Fribourg, Switzerland
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Breschi, Evelina
Physics Department, University of Fribourg, Switzerland
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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.
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Faculty
- Faculté des sciences et de médecine
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Department
- Département de Physique
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Language
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Classification
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Physics
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License
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License undefined
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Identifiers
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Persistent URL
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https://folia.unifr.ch/unifr/documents/303188
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