Fully Differential Rates for Femtosecond Multiphoton Double Ionization of Neon

Weckenbrock, M.; Zeidler, D.; Staudte, A.; Weber, Thorsten; Schöffler, M. S.; Meckel, M.; Kammer, S.; Smolarski, Mathias; Jagutzki, O.; Bhardwaj, V. R.; Rayner, D. M.; Villeneuve, D. M.; Corkum, P. B.; Dørner, R.

doi:10.1103/physrevlett.92.213002

Cited by 138 publications

(63 citation statements)

References 29 publications

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“…Conversely, if the vector potential of the laser pulse is known, the momentum of a photoelectron betrays the time of its birth. Similar reasoning has been employed to discriminate the rescattering-impact-ionisation from the rescatteringexcitation pathway [47].…”

Section: Contemporarymentioning

confidence: 99%

Many-electron strong-field physics

Becker¹,

Rottke²

2008

Contemporary Physics

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Double and multiple ionisation cannot be understood without the contribution of a non-sequential mechanism, which is due to electron-electron correlation. This paper discusses the experimental manifestations of this effect, from its first footprint in the total yields of multiply charged ions to the highly differential cross-sections for ion and electron production, and the theoretical models that have been set up for their description. Except for the ab initio solution of the time-dependent Schro¨dinger equation, most models implement the recollision mechanism. The kinematical constraints imposed by the former are extensively discussed. A fully quantum-mechanical formalisation of the recollision model in terms of the lowest-order S-matrix element for this process is introduced and its limitations are discussed. Various simplifications are proposed that drop more and more of the quantum features. This is contrasted with purely classical trajectory descriptions with no approximations to the dynamics.

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Section: Contemporarymentioning

confidence: 99%

Many-electron strong-field physics

Becker¹,

Rottke²

2008

Contemporary Physics

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“…Thus, it has been investigated extensively in both experiment [1][2][3][4][5][6] and theory [8][9][10][11] in the past two decades. The physical mechanism responsible for NSDI is well established via the "recollision model" [12].…”

mentioning

confidence: 99%

Energy correlation in above-threshold nonsequential double ionization at 800 nm

Liao

2010

Phys. Rev. A

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We have investigated the energy correlation of the two electrons from nonsequential double ionization of helium atoms in 800-nm laser fields at intensities below the recollision threshold by quantum calculations. The circular arcs structure of the correlated electron momentum spectra reveals a resonant double-ionization process in which the two electrons transit from doubly excited states into continuum states by simultaneously absorbing and sharing excess energy in integer units of the photon energy. The effectiveness of Coulomb repulsion plays a decisive role in controlling the electronic dynamics in continuum states and is responsible for the dominant back-to-back electron emission and two intensity-independent cutoffs in the two-electron energy spectra.

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“…The results from these experiments [4,[16][17][18][19] indicate that the ionization of the second electron in NSDI is triggered by the recollision of the first ionized electron with the parent ion [20]. In conventional experiments using multicycle laser pulses, however, multiple recollisions of the first electron with the parent core may significantly complicate the NSDI dynamics [21,22], impeding quantitative comparison of experiment and theory.…”

Section: Introductionmentioning

confidence: 99%

Complete characterization of single-cycle double ionization of argon from the nonsequential to the sequential ionization regime

et al. 2016

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Selected features of nonsequential double ionization have been qualitatively reproduced by a multitude of different (quantum and classical) approaches. In general, however, the typical uncertainty of laser pulse parameters and the restricted number of observables measured in individual experiments leave room for adjusting theoretical results to match the experimental data. While this has been hampering the assessment of different theoretical approaches leading to conflicting interpretations, comprehensive experimental data that would allow such an ultimate and quantitative assessment have been missing so far. To remedy this situation we have performed a kinematically complete measurement of single-cycle multiple ionization of argon over a one order of magnitude range of intensity. The momenta of electrons and ions resulting from the ionization of the target gas are measured in coincidence, while each ionization event is tagged with the carrier-envelope phase and intensity of the 4-fs laser pulse driving the process. The acquired highly differential experimental data provide a benchmark for a rigorous test of the many competing theoretical models used to describe nonsequential double ionization.

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Fully Differential Rates for Femtosecond Multiphoton Double Ionization of Neon

Cited by 138 publications

References 29 publications

Many-electron strong-field physics

Many-electron strong-field physics

Energy correlation in above-threshold nonsequential double ionization at 800 nm

Complete characterization of single-cycle double ionization of argon from the nonsequential to the sequential ionization regime

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