Phase dependence of (<i>N</i>+1)-color (<i>N</i>&gt;1) ir-uv photoionization of atoms with higher harmonics

Véniard, Valérie; Taïeb, Richard; Maquet, Alfred

doi:10.1103/physreva.54.721

Cited by 200 publications

(153 citation statements)

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“…It is shifted by the harmonic phases ϕ n = ϕ n−1 − ϕ n and the atomic phase φ at [12,13,24]. φ at is a function of the PE energy.…”

Section: Discussionmentioning

confidence: 99%

“…For example, the Coulomb interaction causes the xuv streaked PE spectra to be right-left asymmetric [11]. In RABITT (Reconstruction of Attosecond Beating by Interference of Two Photon Transition) measurements, these simultaneous ir-laser pulse and Coulomb interactions induce a so-called atomic phase which shifts sideband intensities as a function of the delay between the xuv pulse train and the ir pulse [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Electron-ion interaction effects in attosecond time-resolved photoelectron spectra

2010

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Photoionization by attosecond extreme ultraviolet (xuv) pulses into the laser-dressed continuum of the ionized atom is commonly described in strong-field approximation, neglecting the Coulomb interaction between the emitted photoelectron (PE) and the residual ion. By solving the time-dependent Schrödinger equation, we identify a temporal shift δτ in streaked PE spectra, which becomes significant at low PE energies. Within an eikonal approximation, we trace this shift to the combined action of Coulomb and laser forces on the released PE, suggesting the experimental and theoretical scrutiny of their coupling in streaked PE spectra. Further, we examined the effect of initial state polarization by the laser pulse on the xuv streaked spectrum.

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“…It is shifted by the harmonic phases ϕ n = ϕ n−1 − ϕ n and the atomic phase φ at [12,13,24]. φ at is a function of the PE energy.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electron-ion interaction effects in attosecond time-resolved photoelectron spectra

2010

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“…Many of the results as well as difficulties apply to alternative protocols as well. The latter include the interferometric RAB-BIT technique (Paul et al, 2001;Véniard et al, 1996;Toma and Muller, 2002;Klünder et al, 2011;Guénot et al, 2012Guénot et al, , 2014Palatchi et al, 2014) for ionization by attosecond pulse trains (APT) and angular attosecond streaking by circularly polarized IR pulses (Eckle et al, 2008a,b;Pfeiffer et al, 2011aPfeiffer et al, ,b, 2013.…”

Section: Attosecond Streaking Of Photoemission a Streaking Princmentioning

confidence: 99%

“…They include the attosecond streaking technique Hentschel et al, 2001;Itatani et al, 2002;Kienberger et al, 2004;Yakovlev et al, 2005;Sansone et al, 2006), RABBIT ("reconstruction of attosecond harmonic beating by interference of two-photon transitions"; Paul et al, 2001;Véniard et al, 1996;Toma and Muller, 2002;Muller, 2002;Haessler et al, 2009;Klünder et al, 2011). The roles of pump and probe are reversed in attosecond transient absorption (ATA; Goulielmakis et al, 2010;Wang et al, 2010;Gaarde et al, 2011;Holler et al, 2011;Santra et al, 2011;Chen et al, 2012Chen et al, , 2013Pabst et al, 2012;Gallmann et al, 2013;Ott et al, 2013Ott et al, , 2014Beck et al, 2015) where the IR pulse creates the wavepacket while the modulation of the absorption of the attosecond XUV pulse probes the time evolution of the electronically exited system.…”

Section: Introductionmentioning

confidence: 99%

Attosecond chronoscopy of photoemission

2015

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Recent advances in the generation of well characterized sub-femtosecond laser pulses have opened up unpredicted opportunities for the real-time observation of ultrafast electronic dynamics in matter. Such attosecond chronoscopy allows a novel look at a wide range of fundamental photophysical and photochemical processes in the time domain, including Auger and autoionization processes, photoemission from atoms, molecules, and surfaces, complementing conventional energy-domain spectroscopy. Attosecond chronoscopy raises fundamental conceptual and theoretical questions as which novel information becomes accessible and which dynamical processes can be controlled and steered. These questions are currently a matter of lively debate which we address in this review. We will focus on one prototypical case, the chronoscopy of the photoelectric effect by attosecond streaking. Is photoionization instantaneous or is there a finite response time of the electronic wavefunction to the photoabsorption event? Answers to this question turn out to be far more complex and multi-faceted than initially thought. They touch upon fundamental issues of time and time delay as observables in quantum theory. We review recent progress of our understanding of time-resolved photoemission from atoms, molecules, and solids. We will highlight the unresolved and open questions and we point to future directions aiming at the observation and control of electronic motion in more complex nanoscale structures and in condensed matter.

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“…The full quantum approach to the latter technique, called RABBIT for Reconstruction of Attosecond Burst By Interferences of Two-photons transitions, is available in Refs. [6][7][8][9]. We here derive in details a more pictorial approach based on the early works of Quéré et al [10,11] and Mairesse [12] 1 .…”

Section: Introductionmentioning

confidence: 99%