Eisenbud–Wigner–Smith time delay in atom–laser interactions

Deshmukh, P. C.; Banerjee, S.; Mandal, Ankur; Manson, S. T.

doi:10.1140/epjs/s11734-021-00225-7

Cited by 12 publications

(5 citation statements)

References 116 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The phase shift difference between the d 0,±1 and s waves is around 0 with a maximum deviation around 0.04 π for the d 0 -wave at Θ T = 0 ∘ , and 0.06 π for the d ±1 -wave at Θ T = 20 ∘ . Here, the partial-wave phase shift includes two main components, , where is the one-photon scattering phase shift 46 during the transition of s → p 0 —i.e., the EWS time delay in the time domain 26 , 27 —and is the continuum-continuum phase shift following the transitions of p 0 → s , or p 0 → d 0 and d ±1 induced by NIR photon absorption or emission in the long-range Coulomb potential of the ionic core 24 . Since all partial waves in the measured sideband arise from the same intermediate p 0 state, the observed skew-angle dependence of the partial-wave phase shift must originate from the continuum-continuum transition process.…”

Section: Resultsmentioning

confidence: 99%

Atomic partial wave meter by attosecond coincidence metrology

et al. 2022

View full text Add to dashboard Cite

Attosecond chronoscopy is central to the understanding of ultrafast electron dynamics in matter from gas to the condensed phase with attosecond temporal resolution. It has, however, not yet been possible to determine the timing of individual partial waves, and steering their contribution has been a substantial challenge. Here, we develop a polarization-skewed attosecond chronoscopy serving as a partial wave meter to reveal the role of each partial wave from the angle-resolved photoionization phase shifts in rare gas atoms. We steer the relative ratio between different partial waves and realize a magnetic-sublevel-resolved atomic phase shift measurement. Our experimental observations are well supported by time-dependent R-matrix numerical simulations and analytical soft-photon approximation analysis. The symmetry-resolved, partial-wave analysis identifies the transition rate and phase shift property in the attosecond photoelectron emission dynamics. Our findings provide critical insights into the ubiquitous attosecond optical timer and the underlying attosecond photoionization dynamics.

show abstract

Section: Resultsmentioning

confidence: 99%

Atomic partial wave meter by attosecond coincidence metrology

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The above examples are in no way exhaustive; they are illustrative of a few of the consequences of the small spin-orbit force on the atomic photoionization process. These suggest that the spin-flip channels, engendered by the spin-orbit force, will also be important in attosecond photoemission time delay, which has been the focus of quite a number of investigations over the past decade or so (see, for example, [20][21][22] and references therein), particularly in the neighborhood of Cooper minima where, the non-spinflip channel amplitudes become quite small. In addition, as pointed out by Fano [1], there are also implications in other aspects of atomic physics.…”

Section: Final Remarksmentioning

confidence: 99%

The Spin-Orbit Interaction: A Small Force with Large Implications

Manson

2023

Atoms

View full text Add to dashboard Cite

show abstract

“…These have been directly measured in systems ranging from atoms to the condensed phase, leading to much debate about interpretation of experimental results especially when they are compared and matched to theoretical estimates and predictions [46]. Deshmukh et al present an instructive tutorial on the Eisenbud-Wigner-Smith time delay from a theoretical perspective [47].…”

Section: Theoretical Aspects Of Strong Light-matter Interactionmentioning

confidence: 99%

Intense laser matter interaction in atoms, finite systems and condensed media: recent experiments and theoretical advances

Krishnan

Mudrich

2021

Eur. Phys. J. Spec. Top.

View full text Add to dashboard Cite

This special issue of the European Journal of Physics: Special Topics entitled "Intense Laser Matter Interaction in Atoms, Finite Systems and Condensed Media" published a set of 21 articles aiming to put in perspective this burgeoning area of science, application and technology. The invention of chirped pulse amplification by Strickland and Mourou, which led to their Nobel prizes in 2018, has ushered in a new era in photon-matter interaction where coherent intense light pulses in the optical and infrared domains play a central role. This development has not only called in creative experimental methods, but has demanded new theoretical approaches working in the non-perturbative and highly nonlinear regimes of light-matter interaction. Both for fundamental physics as well as key applications these have played an essential role. Key pillars of this subject, captured in this collection, are laser-induced nanometerscale plasmas ignited in unsupported nanoparticles, laser-based particle acceleration taking advantage of unprecedented field gradients, the generation of high-order harmonics opening up attosecond science and ultrafast X-ray spectroscopy, and the generation of terahertz pulses for time-domain spectroscopy of new materials.

show abstract

Eisenbud–Wigner–Smith time delay in atom–laser interactions

Cited by 12 publications

References 116 publications

Atomic partial wave meter by attosecond coincidence metrology

Atomic partial wave meter by attosecond coincidence metrology

The Spin-Orbit Interaction: A Small Force with Large Implications

Intense laser matter interaction in atoms, finite systems and condensed media: recent experiments and theoretical advances

Contact Info

Product

Resources

About