Abstract

By using a three-dimensional time-dependent Schr\"odinger equation, we calculate alignment-dependent ionization of model diatomic molecules subjected to an intense laser field with different internuclear distances. It is found that the ionization probability shows oscillatory behavior with respect to the angle between the laser polarization direction and the molecular axis for large internuclear distances. Comparing with the results obtained by Ammosov--Delone--Krainov (ADK) theory and $S$-matrix theory, the intriguing phenomenon can be attributed to the two-center interference effect of low-energy photoelectrons. Furthermore, it is shown that ADK theory is not applicable for the investigation of molecular ionization for large internuclear distances.

Keywords

ElectronAtomic physicsIonizationInterference (communication)PhysicsEnergy (signal processing)Electron ionizationNuclear physicsIonQuantum mechanicsChannel (broadcasting)

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Publication Info

Year
2016
Type
article
Volume
93
Issue
2
Citations
11
Access
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Shilin Hu, Jing Chen, Xiaolei Hao et al. (2016). Effect of low-energy electron interference on strong-field molecular ionization. Physical review. A/Physical review, A , 93 (2) . https://doi.org/10.1103/physreva.93.023424

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DOI
10.1103/physreva.93.023424