Multiphoton radiative recombination of electron assisted by a laser field

Kuchiev, M. Yu.; Ostrovsky, V N

doi:10.1103/physreva.61.033414

Cited by 45 publications

(12 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The value has recently been supported by a calculation by Kuchiev and Ostrovsky, which uses a different approach to the problem. This theory also predicts a power law dependence as in (5), and they find a value a 3.838 [20] in good agreement with the result of Mendez and Feagin. Rost and Pattard [21] have shown that for single ionization it is possible to incorporate the threshold behavior of the Wannier theory with the high energy behavior of the first Born approximation to form a parametrization depending only on the Wannier exponent.…”

Section: Strong Suppression Of the Positronium Channel In Double Ionisupporting

confidence: 85%

Strong Suppression of the Positronium Channel in Double Ionization of Noble Gases by Positron Impact

et al. 1998

View full text Add to dashboard Cite

Positron-induced double ionization of helium and neon has been studied at energies from threshold to 900 eV. A remarkable difference between the near-threshold behavior of the single and double ionization cross sections is found: Single ionization is dominated by positronium (Ps) formation, while for double ionization the Ps channel is absent or strongly suppressed. Absolute cross sections for the two targets have been derived and are compared to a modified Rost-Pattard parametrization. Good agreement is found, showing that this type of model can be extended from single to double ionization. [S0031-9007(98)

show abstract

Section: Strong Suppression Of the Positronium Channel In Double Ionisupporting

confidence: 85%

Strong Suppression of the Positronium Channel in Double Ionization of Noble Gases by Positron Impact

et al. 1998

View full text Add to dashboard Cite

show abstract

“…(3) the integral over time in (28) is evaluated using the saddle point method. As a result, for d (dr) n we obtain (cf.…”

Section: Low-frequency Results For the "Direct" Labrs Amplitude D (Dr) Nmentioning

confidence: 99%

“…given by (16). The result for the dipole moment d(rsc) n then follows from (28) after substituting there the "rescattering approximations" for L (1,2) (t). The result can be presented in the form:…”

Section: Of the Labrs Amplitudementioning

confidence: 99%

Rescattering effects in laser-assisted electron–atom bremsstrahlung

Zheltukhin¹,

Flegel²,

Frolov³

et al. 2015

J. Phys. B: At. Mol. Opt. Phys.

View full text Add to dashboard Cite

Abstract.Rescattering effects in nonresonant spontaneous laser-assisted electron-atom bremsstrahlung (LABrS) are analyzed within the framework of time-dependent effective-range (TDER) theory. It is shown that high energy LABrS spectra exhibit rescattering plateau structures that are similar to those that are wellknown in strong field laser-induced processes as well as those that have been predicted theoretically in laser-assisted collision processes. In the limit of a lowfrequency laser field, an analytic description of LABrS is obtained from a rigorous quantum analysis of the exact TDER results for the LABrS amplitude. This amplitude is represented as a sum of factorized terms involving three factors, each having a clear physical meaning. The first two factors are the exact field-free amplitudes for electron-atom bremsstrahlung and for electron-atom scattering, and the third factor describes free electron motion in the laser field along a closed trajectory between the first (scattering) and second (rescattering) collision events. Finally, a generalization of these TDER results to the case of LABrS in a Coulomb field is discussed.

show abstract

“…The necessary matrix element is contributed by entire range of electron-core separation r. This circumstance was noticed for LAR process in Ref. [29] and for HHG in Ref. [9].…”

Section: Introductionmentioning

confidence: 82%

High harmonic generation by anions and atoms: effect of initial/final-state wavefunctions

Ostrovsky

2005

J. Phys. B: At. Mol. Opt. Phys.

View full text Add to dashboard Cite

Abstract.When High Harmonic Generation (HHG) is considered theoretically within the ideas of the rescattering mechanism, the specifics of initial/final state of the active electron usually attracts little attention. We explore such a specifics related to initial/final bound p-state of the active electron (existing studies concentrated on s-states). The halogen anions and noble gas atoms (except He) provide important examples of such targets. The present theory with realistic wave functions gives HHG rates by one or two orders of magnitude lower than previous calculations with asymptotic (single-exponential) wave functions. This indicates that the HHG process is much more sensitive to the description of the bound state wave functions in the inner domain than the Above Threshold Ionization where the asymptotic (large-r) approach is sufficient and self-consistent. The rates of HHG processes with and without change of electron magnetic quantum number m are compared for B(2p) and H(2p) targets.

show abstract

Multiphoton radiative recombination of electron assisted by a laser field

Cited by 45 publications

References 31 publications

Strong Suppression of the Positronium Channel in Double Ionization of Noble Gases by Positron Impact

Strong Suppression of the Positronium Channel in Double Ionization of Noble Gases by Positron Impact

Rescattering effects in laser-assisted electron–atom bremsstrahlung

High harmonic generation by anions and atoms: effect of initial/final-state wavefunctions

Contact Info

Product

Resources

About