Three-level Doppler-free two- and three-photon resonances

C. Schmidt-Iglesias, R. Corbalán

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We analyse saturated-absorption and two-photon absorption line shapes in Doppler-broadened three-level systems with nearly degenerate resonance frequencies. The two counterpropagating equal-frequency laser beams of arbitrary intensity irradiating the sample are allowed to couple to both atomic transitions. Various Doppler-free resonances associated to two- and three-photon effects occur. Their saturating behaviour is analysed. A comparison is made with experiments by Woerdmann and Schuurmans and by Himbert et al. © 1985 Società Italiana di Fisica.
Original languageEnglish
Pages (from-to)173-182
JournalIl Nuovo Cimento D
Issue number3
Publication statusPublished - 1 Sep 1985


  • Other topics in atomic spectra and interactions of atoms with photons


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