Cord Arnold
Koordinator för Mötesplats Rydbergseminarier
Photoionization in the time and frequency domain
Författare
Summary, in English
Ultrafast processes in matter, such as the electron emission following light absorption, can now be studied using ultrashort light pulses of attosecond duration (10−18 s) in the extreme ultraviolet spectral range. The lack of spectral resolution due to the use of short light pulses has raised issues in the interpretation of the experimental results and the comparison with theoretical calculations. We determine photoionization time delays in neon atoms over a 40 eV energy range with an interferometric technique combining high temporal and spectral resolution. We spectrally disentangle direct ionization from ionization with shake-up, in which a second electron is left in an excited state, and obtain excellent agreement with theoretical calculations, thereby solving a puzzle raised by 7-year-old measurements.
Avdelning/ar
- Atomfysik
- MAX IV-laboratoriet
- Synkrotronljusfysik
Publiceringsår
2017-11-17
Språk
Engelska
Sidor
893-896
Publikation/Tidskrift/Serie
Science
Volym
358
Issue
6365
Dokumenttyp
Artikel i tidskrift
Förlag
American Association for the Advancement of Science (AAAS)
Ämne
- Atom and Molecular Physics and Optics
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0036-8075