Ultrafast photoionization of ions and molecules by orthogonally polarized intense laser pulses:Effects of the time delay

• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2021,（1）
• 页码范围: 233-241
• 页数: 9页
• 语种: 英文
• DOI: 10.1088/1674-1056/abb30c

摘要

We present the photoelectron momentum distributions (PMDs) and the photoelectron angular distributions (PADs) of He+ ions, aligned H+2 molecules and N2 molecules by intense orthogonally polarized laser pulses. Simulations are per-formed by numerically solving the corresponding two-dimensional time-dependent Schr? dinger equations (TDSEs) within the single-electron approximation frame. Photoelectron momentum distributions and photoelectron angular distributions present different patterns with the time delays Td, illustrating the dependences of the PMDs and PADs on the time delays by orthogonally polarized laser pulses. The evolution of the electron wavepackets can be employed to describe the intensity of the PADs from the TDSE simulations for N2 molecules.