Autocorrelation Measurement of Fast Electron Pulses Emitted through the Interaction of Femtosecond Laser Pulses with a Solid Target

作者：Inoue Shunsuke^*; Tokita Shigeki; Otani Kazuto; Hashida Masaki; Hata Masayasu; Sakagami Hitoshi; Taguchi Toshihiro; Sakabe Shuji

来源：Physical Review Letters, 2012, 109(18): 185001.

DOI：10.1103/PhysRevLett.109.185001

We report the first direct measurement of the emission duration of laser-accelerated fast electrons from the surface of a solid target irradiated by a high-intensity femtosecond laser pulse. The emission duration is determined by autocorrelation measurement using the Coulomb repulsive forces that act on two equivalent electron pulses. The emission duration depends on the laser pulse duration for laser pulses of 200-690 fs. Numerical modeling of three-dimensional charged particle dynamics indicates that the emission duration of fast electrons is almost equal to the duration of the laser pulse.

• 出版日期2012-10-31