R. Buffa, SUPPRESSION OF LASER-INDUCED COLLISIONAL AUTOIONIZATION THROUGH ELECTROMAGNETICALLY INDUCED TRANSPARENCY, Physical review. A, 53(1), 1996, pp. 607-610
The effect of electromagnetically induced transparency on laser-induce
d collisional autoionization is investigated. The process, occurring o
nly during atomic collisions and transient in nature, is characterized
by the formation of a quasimolecule that can be ionized through the e
xcitation to a pair of interfering dressed states decaying into the sa
me continuum of ionization. Ionization suppression of the order of 70%
is predicted for dressing laser intensities of the order of a few ten
s of MW/cm(2).