Phase-noise influence on coherent transients and hole burning

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.1103/PhysRevA.58.3099
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  1. National Research Council of Canada. NRC Institute for Microstructural Sciences
FormatText, Article
Journal titlePhysical Review A
ISSN1050-2947
1094-1622
Volume58
Issue4
Pages3099–3113
Abstract
Resonant excitation of an inhomogeneously broadened ensemble of two-level atoms (TLA) by a stochastic field with phase noise is theoretically investigated. Free-induction decay (FID), hole burning (HB), and transient nutation (TN) are studied. We consider two kinds of driving fields, one with a free walking phase and another with the phase locked in a limited domain. It is shown that the resonant excitation behavior depends strongly on the noise property. Noise induced by a walking phase gives a simple contribution to the dephasing time, T2, of two-level atoms whereas phase locking qualitatively changes the laser-atom interaction. In the latter case, it is shown that even when the central part of the driving field spectrum is narrower than homogeneous absorption line of the TLA, the wide, low intensity wings of the spectrum (sidebands produced by the locked phase noise), have a strong effect on the FID, TN, and HB induced by the central, narrow part of the spectrum. The influence of sidebands on photon echoes is also discussed.
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PublisherAPS
LanguageEnglish
Peer reviewedYes
NPARC number23002907
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