Eikonal theory of charged-particle scattering in the presence of a strong electromagnetic wave

Gersten, Joel I.; Mittleman, Marvin H.

doi:10.1103/physreva.12.1840

Cited by 55 publications

(27 citation statements)

References 3 publications

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“…Following a more rigorous approach, the eikonal approximation [52] has been proposed to apply for strong-field problems [53]. In the latter, nonrelativistic free-free transitions in the laser and the Coulomb field have been considered, employing an eikonal wave function for the continuum electron.…”

Section: Introductionmentioning

confidence: 99%

Above-threshold ionization with highly charged ions in superstrong laser fields. I. Coulomb-corrected strong-field approximation

Klaiber¹,

Yakaboylu²,

Hatsagortsyan³

2013

Phys. Rev. A

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Aiming at the investigation of above-threshold ionization in superstrong laser fields with highly charged ions, we develop a Coulomb-corrected strong-field approximation (SFA). The influence of the Coulomb potential of the atomic core on the ionized electron dynamics in the continuum is taken into account via the eikonal approximation, treating the Coulomb potential perturbatively in the phase of the quasiclassical wave function of the continuum electron. In this paper the formalism of the Coulomb-corrected SFA for the nonrelativistic regime is discussed, employing velocity and length gauge. Direct ionization of a hydrogenlike system in a strong linearly polarized laser field is considered. The relation of the results in the different gauges to the Perelomov-Popov-Terent'ev imaginary-time method is discussed.

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Section: Introductionmentioning

confidence: 99%

Above-threshold ionization with highly charged ions in superstrong laser fields. I. Coulomb-corrected strong-field approximation

Klaiber¹,

Yakaboylu²,

Hatsagortsyan³

2013

Phys. Rev. A

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“…The validity limits of these relations are not completely clear in spite of numerous investigations. The FFT process has been studied also in eikonal (Zon 1975, Gersten andMittleman 1975) and quasiclassical (Klinskikh and Rapoport 1987) approximations. These approximations, like the Born one, are valid only for fast enough electrons ( k a >> 1, a is the potential range).…”

Section: Introductionmentioning

confidence: 99%

Conductance of Atom-Sized Zn Contacts

Suzuki

Mukai

Tsutsui

et al. 2006

jjap

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Potential scattering of slow electrons in a weak external electromagnetic field is examined. An expression for the relation between the amplitudes of the n-photon laserinduced free-free transition ( FFT) and electron elastic scattering has been obtained. The many-photon FFT has been numerically calculated in the case of electron scattering by model potentials. The results of calculating the one-photon FFT cross sections are compared with the results of calculations using well known formulae.

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“…As we will show, this phase does not induce any temporal shift in the streaked xuv spectrum but changes the transition probability. The second term in (16) includes Coulomb scattering of the PE while it absorbs or releases ir photons [17]. It is proportional to the ir vector potential and causes a temporal shift in the streaked spectrum.…”

Section: Eikonal Approximationmentioning

confidence: 99%

“…1(d) and 1(e) show δτ and the ratio K/k of streaking-oscillation amplitudes for a large range of ω X . Within an EA approach [11,16,17], we can trace (details are given later) this ω X -dependent temporal shift and the oscillation amplitude enhancement to the CL coupling in the . δτ and K/k, for the TDSE and EA calculations, converge at large ω X to their respective SFA limits, δτ = 0 and K/k = 1, due to the diminishing influence of the residual ion's Coulomb force at increasing PE energies.…”

Section: Introductionmentioning

confidence: 99%

Electron-ion interaction effects in attosecond time-resolved photoelectron spectra

2010

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Photoionization by attosecond extreme ultraviolet (xuv) pulses into the laser-dressed continuum of the ionized atom is commonly described in strong-field approximation, neglecting the Coulomb interaction between the emitted photoelectron (PE) and the residual ion. By solving the time-dependent Schrödinger equation, we identify a temporal shift δτ in streaked PE spectra, which becomes significant at low PE energies. Within an eikonal approximation, we trace this shift to the combined action of Coulomb and laser forces on the released PE, suggesting the experimental and theoretical scrutiny of their coupling in streaked PE spectra. Further, we examined the effect of initial state polarization by the laser pulse on the xuv streaked spectrum.

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Eikonal theory of charged-particle scattering in the presence of a strong electromagnetic wave

Cited by 55 publications

References 3 publications

Above-threshold ionization with highly charged ions in superstrong laser fields. I. Coulomb-corrected strong-field approximation

Above-threshold ionization with highly charged ions in superstrong laser fields. I. Coulomb-corrected strong-field approximation

Conductance of Atom-Sized Zn Contacts

Electron-ion interaction effects in attosecond time-resolved photoelectron spectra

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