Mese, E.Potvliege, M.2024-04-242024-04-2420081050-29471094-1622https://doi.org/10.1103/PhysRevA.77.023414https://hdl.handle.net/11468/17404Representative sections of the quasienergy spectrum of argon and of alkali-metal atoms are presented for wavelengths between 250 nm and 800 nm and excursion amplitudes up to alpha(0)=20 a.u. The variation of the quasienergy spectrum with the wavelength of the laser field is discussed. It is shown that large-scale changes in its topology arise from laser-induced degeneracies with states without physical high-intensity or low-intensity limits.eninfo:eu-repo/semantics/openAccess[No Keyword]Article772WOS:0002537639000952-s2.0-4074909033010.1103/PhysRevA.77.023414Q2Q1