2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/173802Some results from a recent work of Reiss [Phys. Rev. Lett. 101, 043002 (2008); 101, 159901(E) (2008).] are generalized for the case of elliptical polarization of a laser field. We also discuss the tunneling limit of strong-field photoionization.8 pages, 1 figure; submitted to Physical Review AAtomic Physicstext