Observation of two-photon dynamic Stark effect in a three-level Rydberg Na atom
Beterov I. M. , Ryabtsev I.I., Fateev N. V.
A two-photon dynamic Stark effect has been observed for the first time in the field of cw monochromatic radiation on transitions of Rydberg Na atoms. The total cross sections for the two-photon absorption have been measured.