The model of ionization of condensed medium in the field of intensive femtosecond pulses

摘要

The present paper is devoted to the introduction of enhanced model describing an interaction between laser radiation and dielectric medium. This model is based on our earlier researches, and contains a correct description of the dispersion of electrical field's third order nonlinear medium polarization response in a wide spectral range. We have accomplished this description by a pseudo-classical model of multi-photon ionization of optical medium particles (structural elements). A wave equation, describing wide-spectrum femtosecond pulse propagation in nonlinear medium with induced plasma non-linearity, is obtained.