Anisotropic dynamics of two-photon ionization: An attosecond movie of photoemission

Abstract

Imaging in real time the complete dynamics of a process as fundamental as photoemission has long been out of reach due to the difficulty of combining attosecond temporal resolution with fine spectral and angular resolutions. Here, we achieve full decoding of the intricate angle-dependent dynamics of a photoemission process in helium, spectrally and anisotropically structured by twophoton transitions through intermediate bound states. Using spectrally- and angularly-resolved attosecond electron interferometry, we characterize the complex-valued transition probability amplitude towards the photoelectron quantum state. This allows reconstructing in space, time and energy the complete formation of the photoionized wavepacket.

arXiv comment7 pages, 4 figures

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Cited by in corpus (6)

• Attosecond Ionization Time Delays in Strong-Field Physics
• Probing electronic decoherence with high-resolution attosecond photoelectron interferometry
• Polarization control of RABBITT in noble gas atoms
• Laser-assisted Fano resonance: attosecond quantum control and dynamical imaging
• Extraction of XUV+IR ionization amplitudes from the circular dichroic phase
• Circular RABBITT goes under threshold