Near-threshold two-photon double ionization of Kr in the vacuum ultraviolet

Lazaros Varvarezos; Stefan Düsterer; Maksim D. Kiselev; Rebecca Boll; Cedric Bomme; Alberto De Fanis; Benjamin Erk; Christopher Passow; Sergei M. Burkov; Gregor Hartmann; Markus Ilchen; Per Johnsson; Thomas J. Kelly; Bastian Manschwetus; Tommaso Mazza; Michael Meyer; Dimitrios Rompotis; Oleg Zatsarinny; Elena V. Gryzlova; Alexei N. Grum-Grzhimailo; John T. Costello

doi:10.1103/PhysRevA.103.022832

Near-threshold two-photon double ionization of Kr in the vacuum ultraviolet

Lazaros Varvarezos, Stefan Düsterer, Maksim D. Kiselev, Rebecca Boll, Cedric Bomme, Alberto De Fanis, Benjamin Erk, Christopher Passow, Sergei M. Burkov, Gregor Hartmann, Markus Ilchen, Per Johnsson, Thomas J. Kelly, Bastian Manschwetus, Tommaso Mazza, Michael Meyer, Dimitrios Rompotis, Oleg Zatsarinny, Elena V. Gryzlova, Alexei N. Grum-GrzhimailoJohn T. Costello

Atomic Physics

Research output: Contribution to journal › Article › peer-review

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 components of the Kr+ and Kr2+ ions.

Original language	English
Article number	022832
Journal	Physical Review A
Volume	103
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevA.103.022832
Publication status	Published - 2021 Feb

Subject classification (UKÄ)

Atom and Molecular Physics and Optics

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10.1103/PhysRevA.103.022832

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Varvarezos, L., Düsterer, S., Kiselev, M. D., Boll, R., Bomme, C., De Fanis, A., Erk, B., Passow, C., Burkov, S. M., Hartmann, G., Ilchen, M., Johnsson, P., Kelly, T. J., Manschwetus, B., Mazza, T., Meyer, M., Rompotis, D., Zatsarinny, O., Gryzlova, E. V., ... Costello, J. T. (2021). Near-threshold two-photon double ionization of Kr in the vacuum ultraviolet. Physical Review A, 103(2), Article 022832. https://doi.org/10.1103/PhysRevA.103.022832

@article{98a3de7140894bfc96d6fb2e02ed57d6,

title = "Near-threshold two-photon double ionization of Kr in the vacuum ultraviolet",

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 components of the Kr+ and Kr2+ ions.",

author = "Lazaros Varvarezos and Stefan D{\"u}sterer and Kiselev, {Maksim D.} and Rebecca Boll and Cedric Bomme and {De Fanis}, Alberto and Benjamin Erk and Christopher Passow and Burkov, {Sergei M.} and Gregor Hartmann and Markus Ilchen and Per Johnsson and Kelly, {Thomas J.} and Bastian Manschwetus and Tommaso Mazza and Michael Meyer and Dimitrios Rompotis and Oleg Zatsarinny and Gryzlova, {Elena V.} and Grum-Grzhimailo, {Alexei N.} and Costello, {John T.}",

note = "Publisher Copyright: {\textcopyright} 2021 American Physical Society.",

year = "2021",

month = feb,

doi = "10.1103/PhysRevA.103.022832",

language = "English",

volume = "103",

journal = "Physical Review A",

issn = "2469-9926",

publisher = "American Physical Society",

number = "2",

}

Varvarezos, L, Düsterer, S, Kiselev, MD, Boll, R, Bomme, C, De Fanis, A, Erk, B, Passow, C, Burkov, SM, Hartmann, G, Ilchen, M, Johnsson, P, Kelly, TJ, Manschwetus, B, Mazza, T, Meyer, M, Rompotis, D, Zatsarinny, O, Gryzlova, EV, Grum-Grzhimailo, AN & Costello, JT 2021, 'Near-threshold two-photon double ionization of Kr in the vacuum ultraviolet', Physical Review A, vol. 103, no. 2, 022832. https://doi.org/10.1103/PhysRevA.103.022832

TY - JOUR

T1 - Near-threshold two-photon double ionization of Kr in the vacuum ultraviolet

AU - Varvarezos, Lazaros

AU - Düsterer, Stefan

AU - Kiselev, Maksim D.

AU - Boll, Rebecca

AU - Bomme, Cedric

AU - De Fanis, Alberto

AU - Erk, Benjamin

AU - Passow, Christopher

AU - Burkov, Sergei M.

AU - Hartmann, Gregor

AU - Ilchen, Markus

AU - Johnsson, Per

AU - Kelly, Thomas J.

AU - Manschwetus, Bastian

AU - Mazza, Tommaso

AU - Meyer, Michael

AU - Rompotis, Dimitrios

AU - Zatsarinny, Oleg

AU - Gryzlova, Elena V.

AU - Grum-Grzhimailo, Alexei N.

AU - Costello, John T.

PY - 2021/2

Y1 - 2021/2

N2 - 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.

AB - 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.

U2 - 10.1103/PhysRevA.103.022832

DO - 10.1103/PhysRevA.103.022832

M3 - Article

AN - SCOPUS:85101764600

SN - 2469-9926

VL - 103

JO - Physical Review A

JF - Physical Review A

IS - 2

M1 - 022832

ER -

Near-threshold two-photon double ionization of Kr in the vacuum ultraviolet

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