C.C. Chirilă
Nondipole effects in photon emission by laser-driven ions
Chirilă, C.C.; Kylstra, N.J.; Potvliege, R.M.; Joachain, C.J.
Authors
Abstract
The influence of the magnetic-field component of the incident pulse on the emission of photons by multiply charged ions interacting with intense, near-infrared laser pulses is investigated theoretically using a strong-field approximation that treats the coupling of the atom with the incident field beyond the dipole approximation. For peak pulse intensities approaching 1017 W cm-2, the electron drift in the laser propagation direction due to the magnetic-field component of the incident pulse strongly influences the photon emission spectra. In particular, emission is reduced and the plateau structure of the spectra modified, as compared to the predictions in the dipole approximation. Nondipole effects become more pronounced as the ionization potential of the ion increases. Photon emission spectra are interpreted by analysing classical electron trajectories within the semiclassical recollision model. It is shown that a second pulse can be used to compensate the magnetic-field induced drift for selected trajectories so that, in a well-defined spectral region, a single attosecond pulse is emitted by the ion.
Citation
Chirilă, C., Kylstra, N., Potvliege, R., & Joachain, C. (2002). Nondipole effects in photon emission by laser-driven ions. Physical Review A, 66(6), https://doi.org/10.1103/physreva.66.063411
Journal Article Type | Article |
---|---|
Publication Date | 2002-12 |
Deposit Date | Nov 29, 2006 |
Publicly Available Date | Mar 28, 2024 |
Journal | Physical Review A |
Print ISSN | 1050-2947 |
Electronic ISSN | 1094-1622 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 66 |
Issue | 6 |
DOI | https://doi.org/10.1103/physreva.66.063411 |
Keywords | Order harmonic-generation, Attosecond pulses, Intense, Ionization, Field, Atoms, Stabilization, Regime, Train. |
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Copyright Statement
© 2002 by The American Physical Society. All rights reserved.
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