O Herrwerth et al 2008 New J. Phys. 10 025007 doi:10.1088/1367-2630/10/2/025007
Wavelength dependence of sub-laser-cycle few-electron dynamics in strong-field multiple ionization
Focus on Attosecond PhysicsO Herrwerth1, A Rudenko1,3, M Kremer1, V L B de Jesus1,2, B Fischer1, G Gademann1, K Simeonidis1, A Achtelik1, Th Ergler1, B Feuerstein1, C D Schröter1, R Moshammer1 and J Ullrich1
Show affiliationsPart of Focus on Attosecond Physics
Recoil-ion momentum distributions for double and triple ionization of Ne and Ar, as well as for double ionization of N2 molecule by intense (0.3–0.5 PW cm-2), short (~35–40 fs) laser pulses have been recorded in a so far unexplored long laser-wavelength regime at 1300 nm. Compared to earlier results at 800 nm, the direct (e, ne) ionization pathway during recollision is strongly enhanced manifesting itself in a pronounced double-hump structure in the longitudinal ion momentum spectra not only for Ne, but also surprisingly distinct for Ar and, found for the first time, for molecules. Observed wavelength dependence of the sub-laser-cycle correlated few-electron dynamics might be of paramount importance for possible future applications in attosecond science, in particular, for imaging of ultrafast molecular processes via recollision-induced fragmentation.
- PACS
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33.80.Eh Autoionization, photoionization, and photodetachment
33.80.Rv Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states)
- Subjects
- Dates
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Issue 2 (February 2008)
Received 17 September 2007
Published 29 February 2008
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Wavelength dependence of sub-laser-cycle few-electron dynamics in strong-field multiple ionization
O Herrwerth et al 2008 New J. Phys. 10 025007
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