Effects of the Different Laser Beam Profiles on the Tunneling Ionization with Coulomb Correction Included

Abstract

The aim of this paper was to theoretically investigate the applicability of lasers with 10.6 mm and 800 nm wavelength and different spatial distributions on tunneling ionization of alkali atoms. It includes a comparative study of ionization rate with two expressions for initial non-zero momentum of ejected electron. Results show that ionization rates for non-phased and LG(0,1)* spiral-phased linearly polarized laser beams are sensitive to the type of laser, cause different exit points, reach maxima on different intensity values, and have the dissimilar manner of decrease.