Momentum mapping of continuum electron wave packet interference

Abstract

We analyze the two-dimensional photoelectrons momentum distribution of Ar atom ionized by midinfrared laser pulses and mainly concentrate on the energy range below 2Up. By using a generalized quantum trajectory Monte Carlo (GQTMC) simulation and comparing with the numerical solution of time-dependent Schrodinger equation (TDSE), we show that in the deep tunneling regime, the rescattered electron trajectories plays unimportant role and the interplay between the intracycle and inter-cycle results in a ring-like interference pattern. The ring-like interference pattern will mask the holographic interference structure in the low longitudinal momentum region. When the nonadiabatic tunneling contributes significantly to ionization, i.e., the Keldysh parameter 1, the contribution of the rescattered electron trajectories become large, thus holographic interference pattern can be clearly observed. Our results help paving the way for gaining physical insight into ultrafast electron dynamic process with attosecond temporal resolution.

8 pages, 8 figures

References in corpus (3)

• Attosecond double-slit experiment
• Intracycle and Intercycle Interferences in Above-Threshold Ionization: the Time Grating
• Formation of very low energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields

Cited by in corpus (5)

• Deep Learning for Feynman's Path Integral in Strong-Field Time-Dependent Dynamics
• Holographic interference in atomic photoionization from a semiclassical standpoint
• Attosecond Interference Induced by Coulomb-Field-Driven Transverse Backward-Scattering Electron Wave-Packets
• Effect of Stark shift on low-energy interference structure in strong-field ionization
• Low-Energy Interference Structure with Attosecond Temporal Resolution