2017
DOI: 10.1103/physreva.96.023414
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Electron emission perpendicular to the polarization direction in laser-assisted XUV atomic ionization

Abstract: We present a theoretical study of ionization of the hydrogen atom due to an XUV pulse in the presence of an IR laser with both fields linearly polarized in the same direction. In particular, we study the energy distribution of photoelectrons emitted perpendicularly to the polarization direction. By means of a very simple semiclassical model which considers electron trajectories born at different ionization times, the electron energy spectrum can be interpreted as the interplay of intraand intercycle interferen… Show more

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Cited by 13 publications
(49 citation statements)
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“…Conversely, the photoelectron angular distributions (PAD) vary as a function of the delay between the attosecond pulse train and the probe field [22,23]. Modifications of PADs with pump-probe delay have been theoretically predicted [24,25] and the angular dependence of the photoionization time delays in RABBIT measurements has been reproduced in several numerical calculations [21,[26][27][28][29][30]. Nonetheless, the underlying physical origin of these effects is still not understood.…”
mentioning
confidence: 99%
“…Conversely, the photoelectron angular distributions (PAD) vary as a function of the delay between the attosecond pulse train and the probe field [22,23]. Modifications of PADs with pump-probe delay have been theoretically predicted [24,25] and the angular dependence of the photoionization time delays in RABBIT measurements has been reproduced in several numerical calculations [21,[26][27][28][29][30]. Nonetheless, the underlying physical origin of these effects is still not understood.…”
mentioning
confidence: 99%
“…The factor B(k) reduces to the two-slit Young interference expression B(k) = 4 cos 2 π/ω S /2 , whereS is given by Eq. (23). We plot the corresponding SPA doubly differential momentum distribution in Fig.…”
Section: Resultsmentioning
confidence: 99%
“…3b). Such discontinuities are an artifact of the SPA and also appears for laser assisted photoionization emission (two colors with one frequency much higher than the other) [54,55]. Again, the minima of the interhalfcycle rings do not match with the sidebands of the intercycle factor in Figs.…”
Section: B Interference In (ω − 2ω) Photoionizationmentioning
confidence: 95%