Effects of laser intensity on the emission direction of fast electrons in laser-solid interactions

【摘要】 <正> The dependence of emission direction of fast electrons on the laser intensity has beeninvestigated.The experimental results show that,at nonrelativistic laser intensities,the emission offast electrons is mainly in the polarization plane.With the increase of the laser intensity,fast elec-trons emit towards the laser propagation direction from laser polarization direction.At relativisticlaser intensities,fast electrons move away from the laser polarization plane,closely to thereflection direction of the incident laser beam.更多还原

【Abstract】 The dependence of emission direction of fast electrons on the laser intensity has been investigated.The experimental results show that,at nonrelativistic laser intensities,the emission of fast electrons is mainly in the polarization plane.With the increase of the laser intensity,fast elec- trons emit towards the laser propagation direction from laser polarization direction.At relativistic laser intensities,fast electrons move away from the laser polarization plane,closely to the reflection direction of the incident laser beam.更多还原