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

Imaging in real time the complete dynamics of a process as fundamental as photoemission has long been out of reach because of the difficulty of combining attosecond temporal resolution with fine spectral and angular resolutions. Here, we achieve full decoding of the intricate angle-dependent dynamic...

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Bibliographic Details
Published in:Science advances 2022-03, Vol.8 (12), p.eabl7594-eabl7594
Main Authors: Autuori, Alice, Platzer, Dominique, Lejman, Mariusz, Gallician, Guillaume, Maëder, Lucie, Covolo, Antoine, Bosse, Lea, Dalui, Malay, Bresteau, David, Hergott, Jean-François, Tcherbakoff, Olivier, Marroux, Hugo J B, Loriot, Vincent, Lépine, Franck, Poisson, Lionel, Taïeb, Richard, Caillat, Jérémie, Salières, Pascal
Format: Article
Language:English
Subjects:
Applied Physics
Chemical Sciences
or physical chemistry
Physical and Materials Sciences
SciAdv r-articles
Theoretical and
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Summary:Imaging in real time the complete dynamics of a process as fundamental as photoemission has long been out of reach because of 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 two-photon transitions through intermediate bound states. Using spectrally and angularly resolved attosecond electron interferometry, we characterize the complex-valued transition probability amplitude toward the photoelectron quantum state. This allows reconstructing in space, time, and energy the complete formation of the photoionized wave packet.
ISSN:2375-2548
2375-2548
DOI:10.1126/sciadv.abl7594