Magneto-optical spectroscopy with polarization-modulated light
- Breschi, Evelina Department of Physics, University of Fribourg, Switzerland
- Gruijć, Zoran D. Department of Physics, University of Fribourg, Switzerland
- Knowles, Paul E. Department of Physics, University of Fribourg, Switzerland
- Weis, Antoine Department of Physics, University of Fribourg, Switzerland
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16.08.2013
Published in:
- Physical Review A. - 2013, vol. 88, no. 2, p. 022506
English
We present a combined theoretical and experimental study of magnetic resonance transitions induced by polarization-modulated light in cesium vapor exposed to a transverse magnetic field. Signals are obtained by phase-sensitive analysis of the light power traversing the vapor cell at six harmonics of the polarization modulation frequency. Resonances appear whenever the Larmor frequency matches an integer multiple of the modulation frequency. We have further investigated the modifications of the spectra when varying the modulation duty cycle. The resonance amplitudes of both in-phase and quadrature components are well described in terms of the Fourier coefficients of the modulation function. The background-free signals generated by the polarization modulation scheme have a high application potential in atomic magnetometry.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
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- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 136734
- DOI 10.1103/PhysRevA.88.022506
- Persistent URL
- https://folia.unifr.ch/unifr/documents/303192
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