Fano's propensity rule in angle-resolved attosecond pump-probe photoionization

Abstract

In a seminal article, Fano predicts that absorption of light occurs preferably with increase of angular momentum. Here we generalize Fano's propensity rule to laser-assisted photoionization, consisting of absorption of an extreme-ultraviolet photon followed by absorption or emission of an infrared photon. The predicted asymmetry between absorption and emission leads to incomplete quantum interference in attosecond photoelectron interferometry. It explains both the angular-dependence of the photoionization time delays and the delay-dependence of the photoelectron angular distributions. Our theory is verified by experimental results in Ar in the 20-40 eV range.

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Cited by in corpus (20)

• Influence of Shape Resonances on the Angular Dependence of Molecular Photoionization Delays
• Anisotropic dynamics of two-photon ionization: An attosecond movie of photoemission
• A new method for measuring angle-resolved phases in photoemission
• Phase-Dependence of Resonant and Antiresonant Two-Photon Excitations
• Attosecond Ionization Time Delays in Strong-Field Physics
• Probing electronic decoherence with high-resolution attosecond photoelectron interferometry
• Strongly resonant RABBITT on lithium
• Propensity rules and interference effects in laser-assisted photoionization of helium and neon
• Phase delays in $\omega -2\omega$ above-threshold ionization
• Separation of Wigner and Continuum-continuum Delays by Mirror-symmetry-broken Attosecond Interferometry
• Ultrastable, high-repetition-rate attosecond beamline for time-resolved XUV-IR coincidence spectroscopy
• Angle-resolved time delays for shake-up ionization of helium
• Towards the complete phase profiling of attosecond wave packets
• Analytical model for attosecond time delays and Fano's propensity rules in the continuum
• Photoelectron spectroscopy of laser-dressed atomic helium
• Spin hierarchy in van der Waals molecule formation via ultracold three-body recombination
• Extraction of XUV+IR ionization amplitudes from the circular dichroic phase
• Circular RABBITT goes under threshold
• General properties of the RABBITT at parity mixing conditions
• Complete characterization of multi-channel single photon ionization