Ultrafast photoionization of ions and molecules by orthogonally polarized intense laser pulses:Effec

• 作 者: Si-Qi Zhang Zhi-Jie Yang Zhi-Xian Lei Wei Feng Sheng-Peng Zhou Kai-Jun Yuan Xue-Shen Liu Jing Guo
• 机 构: Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
• 出 处: 中国物理B（英文版）
• 发表日期: 2021年1期
• 关键词: photoelectron momentum distributions photoelectron angular distributions intense

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.