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Semiclassical analysis of photoelectron interference in a synthesized two-color laser pulse
- Source :
- Phys. Rev. A 100, 063411 (2019)
- Publication Year :
- 2019
-
Abstract
- We measure the photoelectron energy spectra from strong-field ionization of Kr in a two-color laser pulse consisting of a strong 400-nm field and a weak 800-nm field. The intensities of the main above-threshold ionization (ATI) and sideband peaks in the photoelectron energy spectra oscillate roughly oppositely with respect to the relative phase between the two-color components. We study the photoelectron interferometry in strong-field ATI regime from the view of interference of different electron trajectories in order to extend RABBITT type analysis to the strong-field regime. Based on the strong-field approximation model, we obtain analytical expressions for the oscillations of both ATI and sideband peaks with the relative phase. A phase shift of \pi/4 with respect to the field maximum of the two-color laser pulse is revealed for the interference maximum in the main ATI peak without including the effect of the atomic potential.<br />Comment: 8 pages, 7 figures
- Subjects :
- Physics - Atomic Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. A 100, 063411 (2019)
- Publication Type :
- Report
- Accession number :
- edsarx.1911.04035
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevA.100.063411