Fragmentation Dynamics of Fluorene Explored Using Ultrafast XUV-Vis Pump-Probe Spectroscopy
(2022) In Frontiers in Physics 10.- Abstract
- We report on the use of extreme ultraviolet (XUV, 30.3 nm) radiation from the Free-electron
LASer in Hamburg (FLASH) and visible (Vis, 405 nm) photons from an optical laser to
investigate the relaxation and fragmentation dynamics of fluorene ions. The ultrashort laser
pulses allow to resolve the molecular processes occurring on the femtosecond timescales.
Fluorene is a prototypical small polycyclic aromatic hydrocarbon (PAH). Through their
infrared emission signature, PAHs have been shown to be ubiquitous in the universe, and
they are assumed to play an important role in the chemistry of the interstellar medium. Our
experiments track the ionization and dissociative ionization products of fluorene... (More) - We report on the use of extreme ultraviolet (XUV, 30.3 nm) radiation from the Free-electron
LASer in Hamburg (FLASH) and visible (Vis, 405 nm) photons from an optical laser to
investigate the relaxation and fragmentation dynamics of fluorene ions. The ultrashort laser
pulses allow to resolve the molecular processes occurring on the femtosecond timescales.
Fluorene is a prototypical small polycyclic aromatic hydrocarbon (PAH). Through their
infrared emission signature, PAHs have been shown to be ubiquitous in the universe, and
they are assumed to play an important role in the chemistry of the interstellar medium. Our
experiments track the ionization and dissociative ionization products of fluorene through
time-of-flight mass spectrometry and velocity-map imaging. Multiple processes involved in
the formation of each of the fragment ions are disentangled through analysis of the ion
images. The relaxation lifetimes of the excited fluorene monocation and dication obtained
through the fragment formation channels are reported to be in the range of a few tens of
femtoseconds to a few picoseconds. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/595ef8d6-b302-4aac-9053-65e862c4e9ee
- author
- Garg, D.
; Lee, J. W. L.
LU
; Tikhonov, D. S.
; Chopra, P.
; Steber, A. L.
; Lemmens, A. K.
; Erk, B.
; Allum, F.
; Boll, R.
; Cheng, X.
; Düsterer, S.
; Gruet, S.
; He, L.
; Heathcote, D.
; Johny, M.
; Kazemi, M. M.
; Köckert, H.
; Lahl, J.
LU
; Loru, D.
; Maclot, S.
LU
; Mason, R.
; Müller, E.
; Mullins, T.
; Olshin, P.
; Passow, C.
; Peschel, J.
LU
; Ramm, D.
; Rompotis, D.
; Trippel, S.
; Wiese, J.
; Ziaee, F.
; Bari, S.
; Burt, M.
; Küpper, J.
; Rijs, A. M.
; Rolles, D.
; Techert, S.
; Eng-johnsson, P.
LU
; Brouard, M.
; Vallance, C.
; Manschwetus, B.
LU
and Schnell, M.
(Less) - organization
- publishing date
- 2022
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Frontiers in Physics
- volume
- 10
- article number
- 880793
- publisher
- Frontiers Media S. A.
- external identifiers
-
- scopus:85131159028
- ISSN
- 2296-424X
- DOI
- 10.3389/fphy.2022.880793
- language
- English
- LU publication?
- yes
- id
- 595ef8d6-b302-4aac-9053-65e862c4e9ee
- alternative location
- https://www.frontiersin.org/articles/10.3389/fphy.2022.880793/full
- date added to LUP
- 2022-07-01 08:33:56
- date last changed
- 2022-08-10 04:24:39
@article{595ef8d6-b302-4aac-9053-65e862c4e9ee,
abstract = {{We report on the use of extreme ultraviolet (XUV, 30.3 nm) radiation from the Free-electron<br/>LASer in Hamburg (FLASH) and visible (Vis, 405 nm) photons from an optical laser to<br/>investigate the relaxation and fragmentation dynamics of fluorene ions. The ultrashort laser<br/>pulses allow to resolve the molecular processes occurring on the femtosecond timescales.<br/>Fluorene is a prototypical small polycyclic aromatic hydrocarbon (PAH). Through their<br/>infrared emission signature, PAHs have been shown to be ubiquitous in the universe, and<br/>they are assumed to play an important role in the chemistry of the interstellar medium. Our<br/>experiments track the ionization and dissociative ionization products of fluorene through<br/>time-of-flight mass spectrometry and velocity-map imaging. Multiple processes involved in<br/>the formation of each of the fragment ions are disentangled through analysis of the ion<br/>images. The relaxation lifetimes of the excited fluorene monocation and dication obtained<br/>through the fragment formation channels are reported to be in the range of a few tens of<br/>femtoseconds to a few picoseconds.}},
author = {{Garg, D. and Lee, J. W. L. and Tikhonov, D. S. and Chopra, P. and Steber, A. L. and Lemmens, A. K. and Erk, B. and Allum, F. and Boll, R. and Cheng, X. and Düsterer, S. and Gruet, S. and He, L. and Heathcote, D. and Johny, M. and Kazemi, M. M. and Köckert, H. and Lahl, J. and Loru, D. and Maclot, S. and Mason, R. and Müller, E. and Mullins, T. and Olshin, P. and Passow, C. and Peschel, J. and Ramm, D. and Rompotis, D. and Trippel, S. and Wiese, J. and Ziaee, F. and Bari, S. and Burt, M. and Küpper, J. and Rijs, A. M. and Rolles, D. and Techert, S. and Eng-johnsson, P. and Brouard, M. and Vallance, C. and Manschwetus, B. and Schnell, M.}},
issn = {{2296-424X}},
language = {{eng}},
publisher = {{Frontiers Media S. A.}},
series = {{Frontiers in Physics}},
title = {{Fragmentation Dynamics of Fluorene Explored Using Ultrafast XUV-Vis Pump-Probe Spectroscopy}},
url = {{http://dx.doi.org/10.3389/fphy.2022.880793}},
doi = {{10.3389/fphy.2022.880793}},
volume = {{10}},
year = {{2022}},
}