Measurement of the perturbation of atomic levels by intense light using the process of resonant multiphoton ionization
Bakos J., Kiss A. , Szabo L., Jendler M.
A new method is proposed for measuring the Stark shift of high atomic levels in a strong optical field. The method is based on observing resonant multiphoton ionization of the atom. The multiphoton ionization of the 23S metastable state of the helium atom is investigated, and the values of the Stark shift are obtained for a number of levels.