aRochester University, USA bWild Heerbrugg Limited, Switzerland cUniversity of Colorado, Boulder, USA
Abstract:
An analysis is made of a two-level model of multiphoton absorption in the specific case of four-photon ionization of a cesium atom. Allowance is made for the damping and level-shift effects. An expression is obtained for the overall ionization rate and a comparison is made between the theoretical and experimental results.