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Abstract By solving the two-dimensional time-dependent Schrdinger equation (2D TDSE), we investigate the electron vortex in photoelectron momentum distribution (PMD) for He + in bichromatic co-rotating time delayed circularly polarized… Click to show full abstract
Abstract By solving the two-dimensional time-dependent Schrdinger equation (2D TDSE), we investigate the electron vortex in photoelectron momentum distribution (PMD) for He + in bichromatic co-rotating time delayed circularly polarized laser fields. We find that the PMDs exhibit a vortex spiral structure, and the trajectories of the electron vortices are different when the emission sequence of two laser pulses changes, which is demonstrated by the trajectories of the vector potentials of two laser pulses.
Journal Title: Chemical Physics Letters
Year Published: 2020
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