Abstract
Amplitude ratios of resonance maxima caused by two-photon transitions from different levels of the ground term of the samarium atom are studied experimentally and theoretically as functions of the laser-radiation field strength. The results of these studies are shown to be promising for identifying the resonance structure of three-photon ionization spectra of the samarium atom. A not yet observed excited even-parity state with energy E ≈ 36789.1 cm−1 and hypothetical values of total angular momentum J = 5, 6 has been discovered.
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Original Russian Text © A.I. Gomonai, E.Yu. Remeta, 2013, published in Optika i Spektroskopiya, 2013, Vol. 114, No. 3, pp. 363–371.
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Gomonai, A.I., Remeta, E.Y. The effect of field strength on the resonance structure of three-photon ionization spectra of the samarium atom. Opt. Spectrosc. 114, 329–336 (2013). https://doi.org/10.1134/S0030400X13030119
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DOI: https://doi.org/10.1134/S0030400X13030119