https://doi.org/10.1140/epjd/s10053-023-00750-1
Regular Article – Nonlinear Dynamics
Interference structures in photoelectron intensity distribution and closed orbit in the system
College of Physics and Optoelectronic Engineering, Shenzhen University, 518060, Shenzhen, People’s Republic of China
Received:
15
April
2023
Accepted:
18
August
2023
Published online:
31
August
2023
We present the photodetachment microscopy of the singly charged negative ions using the double pulse with a frequency near the ionization threshold in the presence of a time-independent external electric field. Interference effects in the photoelectrons intensity distribution caused by the photoelectrons originating at different pulses of the double pulse are investigated. We have found that the interference structures appear in the intensity distribution of the detached electrons in temporal space only when the time delay of the double pulse corresponds to the time of closed orbit present in the system. Besides that, only the intensity peaks that emerged as a result of the interference of the trajectories can be modulated by the relative phase of the double pulse.
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