Statistical properties of macroscopic laser fields after coherent interaction with an atomic vapour

Alzar, Carlos L. Garrido; Cruz, Luciano S.; Gomez, Jose G.; Martinelli, M.; Santos, Marcelo F.; Felinto, D.; Valente, P.; Failache, H.; Lezama, A.; Nussenzveig, P.

doi:10.1088/1464-4266/6/6/009

J. Opt. B: Quantum Semiclass. Opt.

2004

DOI: 10.1088/1464-4266/6/6/009

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Statistical properties of macroscopic laser fields after coherent interaction with an atomic vapour

Carlos L. Garrido Alzar¹,

Luciano S. Cruz²,

Jose G. Gomez³

et al.

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2007

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Faraday-rotation fluctuation spectroscopy with static and oscillating magnetic fields

Braun

König

2007

Phys. Rev. B

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By Faraday-rotation fluctuation spectroscopy one measures the spin noise via Faraday-induced fluctuations of the polarization plane of a laser transmitting the sample. In the fist part of this paper, we present a theoretical model of recent experiments on alkali gas vapors and semiconductors, done in the presence of a static magnetic field. In a static field, the spin noise shows a resonance line, revealing the Larmor frequency and the spin coherence time T2 of the electrons. Second, we discuss the possibility to use an oscillating magnetic field in the Faraday setup. With an oscillating field applied, one can observe multi-photon absorption processes in the spin noise. Furthermore an oscillating field could also help to avoid line broadening due to structural or chemical inhomogeneities in the sample, and thereby increase the precision of the spin-coherence time measurement.

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Faraday-rotation fluctuation spectroscopy with static and oscillating magnetic fields

Braun

König

2007

Phys. Rev. B

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Statistical properties of macroscopic laser fields after coherent interaction with an atomic vapour

Cited by 1 publication

References 19 publications

Faraday-rotation fluctuation spectroscopy with static and oscillating magnetic fields

Faraday-rotation fluctuation spectroscopy with static and oscillating magnetic fields

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