Beitler lasers

摘要

Abstract: Using the isoelectron superposition method we showed that the density of autoionizing states of elements with d- and f-equivalent electrons may be from 1 to 10 states per 1 cm$+$MIN@1$/ of energy. For such elements a conception of an `autoionization continuum' may be introduced. The characteristic times of the resonant capture of electrons are comparable, in this case, with the radiation times ($tau approximately 10$+$MIN@8$/ s), therefore, the autoionization processes and the capture of the resonant electrons result in inversion in the ions spectra, as well as, in spectra of Beitler's states. The experimental results on selective autoionization and selective interaction between the ions excited states and the autoionization continuum are presented.!14