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10 papers · 2 filters
Multiphoton Dissociation of HeH+ below the He+(1s) + H(1s) Threshold
D. Ursrey, F. Anis, B. D. Esry
We discuss the strong-field dynamics of HeH+, the simplest stable heteronuclear molecule, focusing on identifying a laser regime for which there is a sufficient dissociation signal…
Generation of broad XUV continuous high harmonic spectra and isolated attosecond pulses with intense mid-infrared lasers
C. Trallero-Herrero, C. Jin, B. E. Schmidt +7
We present experimental results showing the appearance of a near-continuum in the high-order harmonic generation (HHG) spectra of atomic and molecular species as the driving laser…
Efimov physics in heteronuclear four-body systems
Yujun Wang, W. Blake Laing, Javier von Stecher +1
We study three- and four-body Efimov physics in a heteronuclear atomic system with three identical heavy bosonic atoms and one light atom. We show that exchange of the light atom b…
Influence of gas pressure on high-order harmonic generation of Ar and Ne
Guoli Wang, Cheng Jin, Anh-Thu Le +1
We study the effect of gas pressure on the generation of high-order harmonics where harmonics due to individual atoms are calculated using the recently developed quantitative resca…
Generation of isolated attosecond pulses in the far field by spatial filtering with an intense few-cycle mid-infrared laser
Cheng Jin, Anh-Thu Le, Carlos A. Trallero-Herrero +1
We report theoretical calculations of high-order harmonic generation (HHG) of Xe with the inclusion of multi-electron effects and macroscopic propagation of the fundamental and har…
Attosecond probing of instantaneous AC Stark shifts in helium atoms
Feng He, Camilo Ruiz, Andreas Becker +1
Based on numerical solutions of the time-dependent Schrödinger equation for either one or two active electrons, we propose a method for observing instantaneous level shifts in an o…