Frustrated double ionization of argon atoms in strong laser fields

@article{Larimian2018FrustratedDI,
  title={Frustrated double ionization of argon atoms in strong laser fields},
  author={S. Larimian and Sonia Erattupuzha and Andrius Baltuvska and Markus Kitzler and Xinhua Xie},
  journal={Physical Review Research},
  year={2018}
}
We report coincidence measurements of frustrated double ionization of argon atoms with a reaction microscope. Experimental results show electron trap- ping process during double ionization has a clear transition from the nonsequential to the sequential regime. 

Figures from this paper

Frustrated double ionization of atoms in strong laser fields.

The results show that FDI can be more efficiently generated with shorter wavelengths and lower laser intensities and with proper laser parameters more FDI events can be generated than normal double ionization events.

Frustrated double ionization of atoms in circularly polarized laser fields

We theoretically study frustrated double ionization (FDI) of atoms subjected to intense circularly polarized laser pulses using a three-dimensional classical model. We find a ‘knee’ structure of FDI

Strong-field frustrated double ionization of argon atoms

Using a three-dimensional semiclassical method, we theoretically investigate frustrated double ionization (FDI) of Ar atoms subjected to strong laser fields. The double-hump photoelectron momentum

Frustrated nonsequential double ionization of Ar atoms in counter-rotating two-color circular laser fields.

The results show that the FDI probability depends upon the intensity ratio of the CRTC laser fields, and the momentum distribution of a recaptured electron at the ionization time after recollision indicates that the momentum being close to the vector potential is a necessary condition for FDI events to occur.

Laser-induced valence electron excitation in acetylene

Strong-field induced valence electron excitation is a common process in strong field interaction with atoms and molecules. In the case of polyatomic molecules, the effects of ionization from

Recollision of excited electron in below-threshold nonsequential double ionization

Recollision is the most important post-tunneling process in strong-field physics, but so far has been restricted to interaction between the first ionized electron and the residual ion in

Recollision of excited electron in below-threshold nonsequential double ionization

Recollision is the most important post-tunneling process in strong-field physics, but so far has been restricted to interaction between the first ionized electron and the residual ion in

Ellipticity-dependent sequential over-barrier ionization of cold rubidium

We perform high-resolution measurements of momentum distribution on Rb$^{n+}$ recoil ions up to charge state $n=4$, where laser-cooled rubidium atoms are ionized by femtosecond elliptically polarized

Formation of molecular Rydberg states in an intense laser field

In this paper, we experimentally study the decay constants and the Rydberg states population of molecular ions generated in a strong laser field by using a time-of-flight mass spectrometer. The

References

SHOWING 1-10 OF 83 REFERENCES

Intense-field double ionization of helium: identifying the mechanism

It is provided strong evidence that rescattering is responsible for nonsequential ionization by calculating the momentum spectrum of the He2+ recoil ions and by analyzing the electronic center-of-mass motion via Wigner transforms.

Multiple recapture of electrons in multiple ionization of the argon dimer by a strong laser field.

By measuring the kinetic energy release and angular distribution of the Coulomb explosion of up to eightfold ionized argon dimers, this work can trace the recaptured electrons to Rydberg states of the highly charged compound at the end of the laser pulse.

Mechanisms underlying strong-field double ionization of argon dimers

We investigate double ionization of argon dimers in high-intensity ultrashort Ti:sapphire laser pulses. We are able to identify several strong-field excitation pathways of the dimer that terminate in

Observation of nonsequential double ionization of helium with optical tunneling.

A new mechanism is proposed, which can exist only in the tunneling regime, for such nonsequential ionization of helium ionized by 120 fs, 614 nm laser pulses.

Coulomb focusing in intense field atomic processes.

  • BrabecIvanovCorkum
  • Physics
    Physical review. A, Atomic, molecular, and optical physics
  • 1996
The influence of the Coulomb focusing, in combination with multiple returns, focuses parts of the electron wave function, increasing the efficiency of such intense field processes as multiphoton double ionization.

Binary and recoil collisions in strong field double ionization of helium.

A so-far unobserved fingerlike structure in the correlated electron momentum distribution is found, interpreted as a signature of the microscopic dynamics in the recollision process and supported by analyzing ab initio solutions of a fully correlated three-dimensional helium model.

Non-sequential multiple ionization of rare gas atoms in a Ti:Sapphire laser field

Multiple ionization of neon, argon and xenon in a high-intensity Ti:Sapphire laser field has been studied. Ion yield curves of xenon versus laser intensity have been obtained for the first six

Correlated two-electron momentum spectra for strong-field nonsequential double ionization of He at 800 nm.

In contrast with earlier experimental results, but in agreement with various theoretical predictions, the two-electron momentum distributions along the laser polarization axis exhibit a pronounced V-shaped structure, which can be explained by the role of Coulomb repulsion and typical (e,2e) kinematics.

Population trapping in Kr and Xe in intense laser fields.

T trapping of population in Rydberg states of atoms and ions exposed to intense laser radiation, having binding energies much less than the photon energy but remain stable against ionization even when the multiphoton ionization probability of the atom is saturated.

Non-sequential double ionization of Ar: from the single- to the many-cycle regime

The transition from the near-single to the multi-cycle regime in non-sequential double ionization of argon is investigated experimentally. Argon atoms are exposed to intense laser pulses with a
...