Atomic and Free Electrons in a Strong Light Field

Fedorov, M. V.

doi:10.1142/3320

Cited by 179 publications

(336 citation statements)

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“…16 we may choose equal coupling strengths for both discrete states: V A1 V A2 (V X1 V X2 ) and define the decay rates Γ A ≡ 2π|V An | 2 and Γ X ≡ 2π|V Xn | 2 . 16 we may choose equal coupling strengths for both discrete states: V A1 V A2 (V X1 V X2 ) and define the decay rates Γ A ≡ 2π|V An | 2 and Γ X ≡ 2π|V Xn | 2 .…”

Section: Figmentioning

confidence: 99%

Interference stabilization of autoionizing states in molecular N₂ studied by time- and angular-resolved photoelectron spectroscopy

et al. 2016

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An autoionizing resonance in molecular N is excited by an ultrashort XUV pulse and probed by a subsequent weak IR pulse, which ionizes the contributing Rydberg states. Time- and angular-resolved photoelectron spectra recorded with a velocity map imaging spectrometer reveal two electronic contributions with different angular distributions. One of them has an exponential decay rate of 20 ± 5 fs, while the other one is shorter than 10 fs. This observation is interpreted as a manifestation of interference stabilization involving the two overlapping discrete Rydberg states. A formalism of interference stabilization for molecular ionization is developed and applied to describe the autoionizing resonance. The results of calculations suggest, that the effect of the interference stabilization is facilitated by rotationally-induced couplings of electronic states with different symmetry.

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Section: Figmentioning

confidence: 99%

Interference stabilization of autoionizing states in molecular N₂ studied by time- and angular-resolved photoelectron spectroscopy

et al. 2016

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“…The physical meaning of (74) is that r is much smaller than the timescale needed to develop collective instabilities within the bunch due to its interaction with the undulator field and that of the radiation. 37 Therefore, all effects due to the space-charge dynamics during the channeling can be neglected if the volume density of the beam particles satisfies the condition…”

Section: Estimations Of Qk For the Aw Based Undulatormentioning

confidence: 99%

Photon Emission by an Ultra-Relativistic Particle Channeling in a Periodically Bent Crystal

Korol

Solov’yov²,

Greiner

1999

Int. J. Mod. Phys. E

292

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This paper is devoted to a detailed analysis of the new type of undulator radiation generated by an ultra-relativistic charged particle channeling along a crystal plane, which is periodically bent by a transverse acoustic wave, as well as to the conditions limiting the observation of this phenomenon. This mechanism makes feasible the generation of electromagnetic radiation, both spontaneous and stimulated, emitted in a wide range of the photon energies, from X-up to 7-rays. II Int. J. Mod. Phys. E 1999.08:49-100. Downloaded from www.worldscientific.com by UNIVERSITY OF TORONTO on 03/16/15. For personal use only. Int. J. Mod. Phys. E 1999.08:49-100. Downloaded from www.worldscientific.com by UNIVERSITY OF TORONTO on 03/16/15. For personal use only.

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“…[1][2][3][4][5][6] for reviews). The theoretical approaches used to describe all of these phenomena are based on the numerical solution of the time-dependent Schrödinger equation (TDSE) (see, e.g., Refs.…”

Section: Introductionmentioning

confidence: 99%

Ionization in elliptically polarized pulses: Multielectron polarization effects and asymmetry of photoelectron momentum distributions

2012

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In the tunneling regime we present a semiclassical model of above-threshold ionization with inclusion of the Stark shift of the initial state, the Coulomb potential, and a polarization induced dipole potential. The model is used for the investigation of the photoelectron momentum distributions in close to circularly polarized light, and it is validated by comparison with ab initio results and experiments. The momentum distributions are shown to be highly sensitive to the tunneling exit point, the Coulomb force, and the dipole potential from the induced dipole in the atomic core. This multielectron potential affects both the exit point and the dynamics, as illustrated by calculations on Ar and Mg. Analytical estimates for the position of the maximum in the photoelectron distribution are presented, and the model is compared with other semiclassical approaches.

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Atomic and Free Electrons in a Strong Light Field

Cited by 179 publications

References 0 publications

Interference stabilization of autoionizing states in molecular N₂ studied by time- and angular-resolved photoelectron spectroscopy

Interference stabilization of autoionizing states in molecular N₂ studied by time- and angular-resolved photoelectron spectroscopy

Photon Emission by an Ultra-Relativistic Particle Channeling in a Periodically Bent Crystal

Ionization in elliptically polarized pulses: Multielectron polarization effects and asymmetry of photoelectron momentum distributions

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Atomic and Free Electrons in a Strong Light Field

Cited by 179 publications

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Interference stabilization of autoionizing states in molecular N2 studied by time- and angular-resolved photoelectron spectroscopy

Interference stabilization of autoionizing states in molecular N2 studied by time- and angular-resolved photoelectron spectroscopy

Photon Emission by an Ultra-Relativistic Particle Channeling in a Periodically Bent Crystal

Ionization in elliptically polarized pulses: Multielectron polarization effects and asymmetry of photoelectron momentum distributions

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Interference stabilization of autoionizing states in molecular N₂ studied by time- and angular-resolved photoelectron spectroscopy

Interference stabilization of autoionizing states in molecular N₂ studied by time- and angular-resolved photoelectron spectroscopy