摘要
Starting with the nonlinear equations for describing intense laser plasma interaction,without the supposition of tenuous plasma,weak relativity and a priori assumption φ<<1+φ2,the slowly varying part and rapidly varying part of scalar potential φ,and the ratio of third harmonic to pumping laser a3/a1 in plasmas pumped by intense laser (≥1018W/cm2) are obtained.And the plasma and laser parameters favorable for generating harmonic are discussed.
Starting with the nonlinear equations for describing intense laser plasma interaction,without the supposition of tenuous plasma,weak relativity and a priori assumption φ<<1+φ2,the slowly varying part and rapidly varying part of scalar potential φ,and the ratio of third harmonic to pumping laser a3/a1 in plasmas pumped by intense laser (≥1018W/cm2) are obtained.And the plasma and laser parameters favorable for generating harmonic are discussed.
