Breakdown of a nanoparticle partially ionized by a powerful ultrashort laser pulse

This paper presents the results of an analytical calculation and numerical modeling of the disintegration of a nanoparticle of a condensed medium partially ionized by a powerful ultrashort pulse (USP) of laser radiation. The mechanism of the process by which the nanoparticle is disintegrated by the Coulomb forces that result from the disruption of charge equilibrium in it under the action of the USP is established by comparing the results obtained by analytical and numerical methods. The kinetics of the energy spectrum of the dispersing ions is analyzed, taking into account the deceleration of the ions in the nanoparticle.