Near-threshold two-photon double ionization of Kr in the vacuum ultraviolet
(2021) In Physical Review A 103(2).- Abstract
We report angle-resolved measurements on photoelectrons emitted upon near-threshold two-photon double ionization (TPDI) of Kr irradiated by free-electron laser (FEL) pulses. These photoelectron angular distributions (PADs) are compared with the results of semirelativistic R-matrix calculations. As reported by Augustin et al. [Phys. Rev. A 98, 033408 (2018)10.1103/PhysRevA.98.033408], it is found that the presence of autoionizing resonances within the bandwidth of the exciting FEL pulse strongly influences the PADs. In contrast to measurements on lower-Z targets such as Ne and Ar, the larger spin-orbit interaction, inherent in 4p-subshell hole states of Kr, permits us to resolve and study PADs associated with some of the fine-structure... (More)
We report angle-resolved measurements on photoelectrons emitted upon near-threshold two-photon double ionization (TPDI) of Kr irradiated by free-electron laser (FEL) pulses. These photoelectron angular distributions (PADs) are compared with the results of semirelativistic R-matrix calculations. As reported by Augustin et al. [Phys. Rev. A 98, 033408 (2018)10.1103/PhysRevA.98.033408], it is found that the presence of autoionizing resonances within the bandwidth of the exciting FEL pulse strongly influences the PADs. In contrast to measurements on lower-Z targets such as Ne and Ar, the larger spin-orbit interaction, inherent in 4p-subshell hole states of Kr, permits us to resolve and study PADs associated with some of the fine-structure components of the Kr+ and Kr2+ ions.
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- author
- organization
- publishing date
- 2021-02
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A
- volume
- 103
- issue
- 2
- article number
- 022832
- publisher
- American Physical Society
- external identifiers
-
- scopus:85101764600
- ISSN
- 2469-9926
- DOI
- 10.1103/PhysRevA.103.022832
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2021 American Physical Society.
- id
- 98a3de71-4089-4bfc-96d6-fb2e02ed57d6
- date added to LUP
- 2022-01-17 14:27:36
- date last changed
- 2023-11-23 15:37:52
@article{98a3de71-4089-4bfc-96d6-fb2e02ed57d6, abstract = {{<p>We report angle-resolved measurements on photoelectrons emitted upon near-threshold two-photon double ionization (TPDI) of Kr irradiated by free-electron laser (FEL) pulses. These photoelectron angular distributions (PADs) are compared with the results of semirelativistic R-matrix calculations. As reported by Augustin et al. [Phys. Rev. A 98, 033408 (2018)10.1103/PhysRevA.98.033408], it is found that the presence of autoionizing resonances within the bandwidth of the exciting FEL pulse strongly influences the PADs. In contrast to measurements on lower-Z targets such as Ne and Ar, the larger spin-orbit interaction, inherent in 4p-subshell hole states of Kr, permits us to resolve and study PADs associated with some of the fine-structure components of the Kr+ and Kr2+ ions.</p>}}, author = {{Varvarezos, Lazaros and Düsterer, Stefan and Kiselev, Maksim D. and Boll, Rebecca and Bomme, Cedric and De Fanis, Alberto and Erk, Benjamin and Passow, Christopher and Burkov, Sergei M. and Hartmann, Gregor and Ilchen, Markus and Johnsson, Per and Kelly, Thomas J. and Manschwetus, Bastian and Mazza, Tommaso and Meyer, Michael and Rompotis, Dimitrios and Zatsarinny, Oleg and Gryzlova, Elena V. and Grum-Grzhimailo, Alexei N. and Costello, John T.}}, issn = {{2469-9926}}, language = {{eng}}, number = {{2}}, publisher = {{American Physical Society}}, series = {{Physical Review A}}, title = {{Near-threshold two-photon double ionization of Kr in the vacuum ultraviolet}}, url = {{http://dx.doi.org/10.1103/PhysRevA.103.022832}}, doi = {{10.1103/PhysRevA.103.022832}}, volume = {{103}}, year = {{2021}}, }