Third harmonic generation and resonance-enhanced multiphoton ionization in Bessel beams

摘要

Presented are the results of a study of resonance-enhanced third-harmonic generation and multiphoton ionization in dense zenon under excitation by the Bessel beams. Bessel beams with inclination angles from 10$DGR to 90$DGR are shown to produce ionization spectra with significant differences, as compared with the case of the ordinary Gaussian. Several features of ionization spectra are considered and discussed. Results of numerical simulation of third-harmonic generation in Bessel beams are presented and compared with experimental observations.