AUTOIONIZATION OF THE ATOM IN A LASER FIELD

CHEN RONG-QING, Zhizhan Xu, SUN LAN +4 more

Previous studies on strong-field autoionization involving high-order ionization processes are mainly investigated for the cases of CW laser irradiations. This paper extends those studies to the cases of square laser pulses with arbitrary widths. Populations of the ground state and the line shapes of the autoionizing resonance are discussed. It is shown that strong-field autoionization and the high-order ionization processes are drastically affected not only by the intensities but also by the time of interaction between atoms and laser field.

A. I. Greiser

Roberto Buffa, J. K. Spong

О. В. Глушков, Георгий Петрович Препелица, О. Ю. Погосов +4 more

We present new optimal scheme of the separating highly radioactive isotopes and products of atomics energetics such as 133,135,137Cs and others, which is based on the selective laser excitation of the isotopes atoms into excited Rydberg states and further autoionization or DC electric field pulse ionization.

Alexandr I. Magunov, Markus Müller, I. Rotter +1 more

Zhong Wang

Time charactristic of autoionization of two level atoms induced by laser pulses was investigated. Schrodinger's motion equations of two level atoms were solved numerically for Guassian laser pulses. There was a particular value of laser intensity, in which the ionization number in per nuit time becomes biggest. An analytic formula about autoionizing probability was derived for exponential laser pulses.