Resonant multiphoton ionization of caesium atoms by ultra-short laser pulses at 1.06 μm L.A. Lompre, G. Mainfray, C. Manus et J. ThebaultJ. Phys. France, 39 6 (1978) 610-616DOI: https://doi.org/10.1051/jphys:01978003906061000
