| Autor: |
Armstrong, G. S. J., Clarke, D. D. A., Brown, A. C., van der Hart, H. W. |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Phys. Rev. A 99 023429 (2019) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevA.99.023429 |
| Popis: |
We use the $R$-matrix with time-dependence method to study detachment from F$^-$ in circularly-polarized laser fields of infrared wavelength. By decomposing the photoelectron momentum distribution into separate contributions from detached $2p_1$ and $2p_{-1}$ electrons, we demonstrate that the detachment yield is distributed asymmetrically with respect to these initial orbitals. We observe the well-known preference for strong-field detachment of electrons that are initially counter-rotating relative to the field, and calculate the variation in this preference as a function of photoelectron energy. The wavelengths used in this work provide natural grounds for comparison between our calculations and the predictions of analytical approaches tailored for the strong-field regime. In particular, we compare the ratio of counter-rotating electrons to corotating electrons as a function of photoelectron energy. We carry out this comparison at two wavelengths, and observe good qualitative agreement between the analytical predictions and our numerical results. |
| Databáze: |
arXiv |
| Externí odkaz: |
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