Physical Review A

Above-threshold ionization of atoms irradiated by sinusoidally phase-modulated pulses

Haiying Yuan, Yujun Yang, Fu-Ming Guo, Ji-Gen Chen, Jun Wang, Zhiwen Cui

Published Feb 5, 2024• 5 citations

Abstract

By solving the time-dependent Schr\"odinger equation in momentum space, the photoelectron emission from atoms under the irradiation of 400 nm sinusoidal phase-modulated shaped pulses was investigated. It was found that by controlling the phase and amplitude of the pulses in the frequency domain, in addition to the photoelectron peaks generated by the interference of multiple-cycle ionization, additional resonant peak structures and interference phenomena can be observed in the photoelectron emission spectrum. Through the analysis of photoelectrons from different subpulses within the shaped pulse, it was discovered that these structures arise from the modulation of ionization and excitation processes by multiple subpulses within the shaped pulse. This study demonstrates the significant importance of utilizing shaped pulses for the control of photoelectron emission.

DOI: 10.1103/physreva.109.023104

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