Physical Review LettersSaturation of Continuum-Continuum Transitions in Multiphoton AbsorptionKazimierz Rza̧żewski, R. GrobePublished Apr 15, 1985• 29 citationsPublisherAbstractReceived 21 January 1985DOI:https://doi.org/10.1103/PhysRevLett.54.1729©1985 American Physical SocietyDOI10.1103/physrevlett.54.1729