Disentangling Spectral Phases of Interfering Autoionizing States from Attosecond Interferometric Measurements
(2019) In Physical Review Letters 122(25).- Abstract
- We have determined spectral phases of Ne autoionizing states from extreme ultraviolet and midinfrared attosecond interferometric measurements and ab initio full-electron time-dependent theoretical calculations in an energy interval where several of these states are coherently populated. The retrieved phases exhibit a complex behavior as a function of photon energy, which is the consequence of the interference between paths involving various resonances. In spite of this complexity, we show that phases for individual resonances can still be obtained from experiment by using an extension of the Fano model of atomic resonances. As simultaneous excitation of several resonances is a common scenario in many-electron systems, the present work... (More)
- We have determined spectral phases of Ne autoionizing states from extreme ultraviolet and midinfrared attosecond interferometric measurements and ab initio full-electron time-dependent theoretical calculations in an energy interval where several of these states are coherently populated. The retrieved phases exhibit a complex behavior as a function of photon energy, which is the consequence of the interference between paths involving various resonances. In spite of this complexity, we show that phases for individual resonances can still be obtained from experiment by using an extension of the Fano model of atomic resonances. As simultaneous excitation of several resonances is a common scenario in many-electron systems, the present work paves the way to reconstruct electron wave packets coherently generated by attosecond pulses in systems larger than helium. (Less)
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- author
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 122
- issue
- 25
- article number
- 253203
- publisher
- American Physical Society
- external identifiers
-
- scopus:85068615844
- ISSN
- 0031-9007
- DOI
- 10.1103/PhysRevLett.122.253203
- language
- English
- LU publication?
- no
- id
- 71b3a7ec-38fd-4232-a49d-dcfb80480ca3
- date added to LUP
- 2022-01-12 10:48:25
- date last changed
- 2022-04-19 19:07:10
@article{71b3a7ec-38fd-4232-a49d-dcfb80480ca3, abstract = {{We have determined spectral phases of Ne autoionizing states from extreme ultraviolet and midinfrared attosecond interferometric measurements and ab initio full-electron time-dependent theoretical calculations in an energy interval where several of these states are coherently populated. The retrieved phases exhibit a complex behavior as a function of photon energy, which is the consequence of the interference between paths involving various resonances. In spite of this complexity, we show that phases for individual resonances can still be obtained from experiment by using an extension of the Fano model of atomic resonances. As simultaneous excitation of several resonances is a common scenario in many-electron systems, the present work paves the way to reconstruct electron wave packets coherently generated by attosecond pulses in systems larger than helium.}}, author = {{Barreau, Lou and Petersson, Leon and Klinker, Markus and Camper, Antoine and Marante, Carlos and Gorman, Timothy and Kiesewetter, Dietrich and Argenti, Luca and Agostini, Pierre and Gonzales-Vazquez, Jesus and Sali`eres, Pascal and DiMauro, Louis}}, issn = {{0031-9007}}, language = {{eng}}, number = {{25}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Disentangling Spectral Phases of Interfering Autoionizing States from Attosecond Interferometric Measurements}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.122.253203}}, doi = {{10.1103/PhysRevLett.122.253203}}, volume = {{122}}, year = {{2019}}, }