Quantitative rescattering theory for nonsequential double ionization*

Chen, Zhangjin; Liu, Fang; Hua, Wen

doi:10.1088/1674-1056/ab54b3

Cited by 10 publications

(6 citation statements)

References 92 publications

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“…Since the details of the numerical procedures for simulations of the CMD for NSDI of helium atoms based on the QRS model have been presented in Refs. [8,9,15], here we only give a brief overview.…”

Section: The Qrs Model For Nsdimentioning

confidence: 99%

Evidence of potential change in nonsequential double ionization*

Chen¹,

Zhang²,

Hua³

et al. 2021

Chinese Phys. B

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Recently, the quantitative rescattering model (QRS) for nonsequential double ionization (NSDI) is modified by taking into account the potential change (PC) due to the presence of electric field at the time of recollision. Using the improved QRS model, we simulate the longitudinal momentum distributions of doubly charged ions He2+ by projecting the correlated two-electron momentum distributions for NSDI of He onto the main diagonal. The obtained results are compared directly with the experimental data at different intensities. It is found that when the PC is considered, the width of momentum distributions reduces and the agreement between theory and experiment is improved.

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Section: The Qrs Model For Nsdimentioning

confidence: 99%

Evidence of potential change in nonsequential double ionization*

Chen¹,

Zhang²,

Hua³

et al. 2021

Chinese Phys. B

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show abstract

“…The details of the numerical procedures for simulations of the CMD for NSDI of helium based on the improved QRS model have been presented in Refs. [33][34][35]. Hence we only give a brief overview here.…”

Section: Theoretical Modelmentioning

confidence: 99%

Intensity dependence in nonsequential double ionization of helium

et al. 2020

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Using the quantitative rescattering model, we simulate the correlated two-electron momentum distributions for nonsequential double ionization of helium by 800 nm laser pulses at intensities in the range of (2 − 15) × 10 14 W/cm 2 . The experimentally observed V-shaped structure at high intensities [A. Rudenko et al., Phys. Rev. Lett. 99, 263003 (2007)] is attributed to the strong forward scattering in laser-induced recollision excitation and the asymmetric momentum distribution of electrons that are tunneling-ionized from the excited states. The final-state electron repulsion also plays an important role in forming the V-shaped structure.

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“…where j stands for "exc" or "e2e". Details of the numerical procedures for simulations of the CMD for NSDI of atoms based on the improved QRS model were presented in [20,21,37].…”

Section: The Parallel Momentum Distribution D Excmentioning

confidence: 99%

Nonsequential double ionization of Ar in near-single-cycle laser pulses

et al. 2020

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Using the improved quantitative rescattering (QRS) model, we simulate the correlated two-electron momentum distributions (CMD) for nonsequential double ionization (NSDI) of Ar by near-single-cycle laser pulses with a wavelength of 750 nm at an intensity of 2.8 × 10 14 W/cm 2. With the accurate cross sections obtained from fully quantum mechanical calculations for both electron impact excitation and electron impact ionization of Ar + , we unambiguously identify the contributions from recollision direct ionization (RDI) and recollision excitation with subsequent ionization (RESI). Our analysis reveals that RESI constitutes the main contribution to NSDI of Ar under the conditions considered here. The simulated results are directly compared with experimental measurements [Bergues et al., Nature Commun. 3, 813 (2012)] in which each NSDI event is tagged with the carrier-envelope phase (CEP). It is found that the overall pattern of both the CEP-resolved and the CEP-averaged CMDs measured in experiment are well reproduced by the QRS model, and the cross-shaped structure in the CEP-averaged CMD is attributed to the strong forward scattering of the recolliding electron as well as the depletion effect in tunneling ionization of the electron from an excited state of the parent ion.

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Quantitative rescattering theory for nonsequential double ionization*

Cited by 10 publications

References 92 publications

Evidence of potential change in nonsequential double ionization*

Evidence of potential change in nonsequential double ionization*

Intensity dependence in nonsequential double ionization of helium

Nonsequential double ionization of Ar in near-single-cycle laser pulses

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