HILITE—ions in intense photon fields

Ringleb, S; Vogel, Manuel; Kumar, S.; Quint, W.; Paulus, Gerhard G.; Stöhlker, Th.

doi:10.1088/0031-8949/2015/t166/014067

Cited by 8 publications

(4 citation statements)

References 23 publications

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“…In particular, the interaction of the extreme light pulses with the highly-charged ions is an attractive topic, given that such ions have their own strong Coulomb field. The shortly upcoming High-Intensity Laser Ion-Trap Experiment (HILITE) experiment [5][6][7], which is intended to study the light-matter interaction using the Penning trap, is worth noting here.…”

Section: Introductionmentioning

confidence: 99%

Relativistic mask method for electron momentum distributions after ionization of hydrogen-like ions in strong laser fields

Tumakov,

Telnov,

Plunien

et al. 2020

Preprint

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Wavefunction-splitting or mask method, widely used in the non-relativistic calculations of the photoelectron angular distributions, is extended to the relativistic domain within the dipole approximation. Since the closedform expressions for the relativistic Volkov states are not available within the dipole approximation, we build such states numerically solving a single second-order differential equation. We calculate the photoelectron energy spectra and angular distributions for highly charged ions under different ionization regimes with both the direct and the relativistic mask methods. We show that the relativistic mask method works very well and reproduces the electron energy and angular distributions calculated by the direct method in the energy range where both methods can be used. On the other hand, the relativistic mask method can be applied for longer laser pulses and/or higher photoelectron energies where the direct method may have difficulties.

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Section: Introductionmentioning

confidence: 99%

Relativistic mask method for electron momentum distributions after ionization of hydrogen-like ions in strong laser fields

Tumakov,

Telnov,

Plunien

et al. 2020

Preprint

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“…In this paper, we present an analysis of an open-endcap Penning trap with conical openings of the endcap electrodes. Such a geometry lends itself to access of the trap centre for example with high energy and/or high-intensity laser beams, as foreseen in experiments like [44,[48][49][50][51]. Section 2 shows analytical calculations of the expansion coefficients of the electrostatic potential close to the centre of the trap in this configuration.…”

Section: Introductionmentioning

confidence: 99%

Properties of a cylindrical Penning trap with conical endcap openings

et al. 2019

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We describe the results of analytical calculations and numerical simulations of the confinement properties of a mechanically compensated cylindrical Penning trap which has conical endcap openings for large-solid-angle access for example with highly focused laser beams. While the analytical calculations show that under the common geometrical conditions the harmonicity of the confining fields near the centre of the trap does not change when a conical shape of the endcap electrodes is introduced, numerical simulations show significant changes when the opening angle of the cone exceeds a certain critical angle. We also show that these sharp features are due to the fringe-field effects above the critical angle, which are not described by the analytical calculations. These effects are also observed in a cylindrical Penning trap when the length of the endcap electrodes is reduced below a certain critical value.

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“…New light sources with high brilliance in the X-ray region, such as European X-ray Free Electron Laser (EXFEL) in Germany, Super Photon Ring-8 GeV Angstrom Compact free electron LAser (SACLA) in Japan, and Linear Coherent Light Source (LCLS) in USA, will provide opportunities to explore the interaction of strong and short-wavelength electromagnetic radiation with highly charged ions, which themselves are relativistic quantum systems. We can also mention the high-intensity laser ion-trap experiment (HILITE) under construction at Darmstadt intended to study laser–ion interactions with well-defined ion targets using the Penning trap …”

Section: Introductionmentioning

confidence: 99%

Multiphoton Ionization of One-Electron Relativistic Diatomic Quasimolecules in Strong Laser Fields

et al. 2018

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We perform a theoretical and computational study of relativistic one-electron homonuclear diatomic quasimolecules subject to strong electromagnetic fields linearly polarized along the molecular axis. Several quasimolecules with the nuclear charges 1-92 and appropriately scaled internuclear distances and field parameters are used in the calculations. The time-dependent Dirac equation is solved with the help of the generalized pseudospectral method in prolate spheroidal coordinates. We have found that employing this coordinate system makes it possible to avoid emergence of spurious states, which usually show up when solving the Dirac equation numerically. For lower carrier frequencies, interaction with the driving field is described within the dipole approximation. Relativistic effects in the multiphoton ionization probabilities are investigated with respect to the internuclear distance in the quasimolecule. For higher frequencies, the interaction with the field is described beyond the dipole approximation. Nondipole effects in the ionization probability are discussed.

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HILITE—ions in intense photon fields

Cited by 8 publications

References 23 publications

Relativistic mask method for electron momentum distributions after ionization of hydrogen-like ions in strong laser fields

Relativistic mask method for electron momentum distributions after ionization of hydrogen-like ions in strong laser fields

Properties of a cylindrical Penning trap with conical endcap openings

Multiphoton Ionization of One-Electron Relativistic Diatomic Quasimolecules in Strong Laser Fields

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