Coulomb explosion of diatomic molecules in intense XUV fields mapped by partial covariance
(2013) In Journal of Physics B: Atomic, Molecular and Optical Physics 46(16).- Abstract
- Single-shot time-of-flight spectra for Coulomb explosion of N-2 and I-2 molecules have been recorded at the Free Electron LASer in Hamburg (FLASH) and have been analysed using a partial covariance mapping technique. The partial covariance analysis unravels a detailed picture of all significant Coulomb explosion pathways, extending up to the N4+-N5+ channel for nitrogen and up to the I8+-I9+ channel for iodine. The observation of the latter channel is unexpected if only sequential ionization processes from the ground state ions are considered. The maximum kinetic energy release extracted from the covariance maps for each dissociation channel shows that Coulomb explosion of nitrogen molecules proceeds much faster than that of the iodine. The... (More)
- Single-shot time-of-flight spectra for Coulomb explosion of N-2 and I-2 molecules have been recorded at the Free Electron LASer in Hamburg (FLASH) and have been analysed using a partial covariance mapping technique. The partial covariance analysis unravels a detailed picture of all significant Coulomb explosion pathways, extending up to the N4+-N5+ channel for nitrogen and up to the I8+-I9+ channel for iodine. The observation of the latter channel is unexpected if only sequential ionization processes from the ground state ions are considered. The maximum kinetic energy release extracted from the covariance maps for each dissociation channel shows that Coulomb explosion of nitrogen molecules proceeds much faster than that of the iodine. The N-2 ionization dynamics is modelled using classical trajectory simulations in good agreement with the outcome of the experiments. The results suggest that covariance mapping of the Coulomb explosion can be used to measure the intensity and pulse duration of free-electron lasers. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4172297
- author
- Kornilov, O.
; Eckstein, M.
; Rosenblatt, M.
; Schulz, C. P.
; Motomura, K.
; Rouzee, A.
; Klei, J.
; Foucar, L.
; Siano, M.
; Luebcke, A.
; Schapper, F.
; Johnsson, Per
LU
; Holland, D. M. P.
; Schlathoelter, T.
; Marchenko, T.
; Duesterer, S.
; Ueda, K.
; Vrakking, M. J. J.
and Frasinski, L. J.
(Less) - organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Physics B: Atomic, Molecular and Optical Physics
- volume
- 46
- issue
- 16
- article number
- 164028
- publisher
- IOP Publishing
- external identifiers
-
- wos:000323113100029
- scopus:84883194878
- ISSN
- 0953-4075
- DOI
- 10.1088/0953-4075/46/16/164028
- language
- English
- LU publication?
- yes
- id
- ffe18b2f-13a1-481e-a4af-4d75099067d5 (old id 4172297)
- date added to LUP
- 2016-04-01 12:51:33
- date last changed
- 2022-04-21 18:22:14
@article{ffe18b2f-13a1-481e-a4af-4d75099067d5,
abstract = {{Single-shot time-of-flight spectra for Coulomb explosion of N-2 and I-2 molecules have been recorded at the Free Electron LASer in Hamburg (FLASH) and have been analysed using a partial covariance mapping technique. The partial covariance analysis unravels a detailed picture of all significant Coulomb explosion pathways, extending up to the N4+-N5+ channel for nitrogen and up to the I8+-I9+ channel for iodine. The observation of the latter channel is unexpected if only sequential ionization processes from the ground state ions are considered. The maximum kinetic energy release extracted from the covariance maps for each dissociation channel shows that Coulomb explosion of nitrogen molecules proceeds much faster than that of the iodine. The N-2 ionization dynamics is modelled using classical trajectory simulations in good agreement with the outcome of the experiments. The results suggest that covariance mapping of the Coulomb explosion can be used to measure the intensity and pulse duration of free-electron lasers.}},
author = {{Kornilov, O. and Eckstein, M. and Rosenblatt, M. and Schulz, C. P. and Motomura, K. and Rouzee, A. and Klei, J. and Foucar, L. and Siano, M. and Luebcke, A. and Schapper, F. and Johnsson, Per and Holland, D. M. P. and Schlathoelter, T. and Marchenko, T. and Duesterer, S. and Ueda, K. and Vrakking, M. J. J. and Frasinski, L. J.}},
issn = {{0953-4075}},
language = {{eng}},
number = {{16}},
publisher = {{IOP Publishing}},
series = {{Journal of Physics B: Atomic, Molecular and Optical Physics}},
title = {{Coulomb explosion of diatomic molecules in intense XUV fields mapped by partial covariance}},
url = {{http://dx.doi.org/10.1088/0953-4075/46/16/164028}},
doi = {{10.1088/0953-4075/46/16/164028}},
volume = {{46}},
year = {{2013}},
}