Model for transmission of ultrastrong laser pulses through thin foil targets

摘要

A model for the penetration of ultrahigh-intensity ultrashort-pulse lasers through a highly overdense foil target is proposed. The model involves only electron motion. It is shown that the ponderomotive force of the light waves can push the electrons towards the back surface of the foil, such that the effective thickness of the latter is reduced to the order of the skin depth, thus allowing wave penetration. The results agree well with that from a particle-in-cell simulation. [S1063-651X(99)13803-0]. [References: 27]