Abstract

Abstract Through the numerical solution of the 3D time-dependent Schrodinger equation, the two-dimensional photoelectron energy spectra (PES) of argon have been calculated, showing good accordance with the experimental measurements. Further analysis on the TDSE calculated data and comparison of PES under linearly and circularly polarized laser pulses demonstrated that the forward rescattering of the recolliding electron is mainly responsible for the appearance of the low energy structure (LES) in the PES. It is further revealed that the LES is correlated with the high angular momenta ( l = 8 – 13 ) of the photoelectron.

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