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Multi-channel photodissociation and XUV-induced charge transfer dynamics in strong-field-ionized methyl iodide studied with timeresolved recoil-frame covariance imaging

Multi-channel photodissociation and XUV-induced charge transfer dynamics in strong-field-ionized methyl iodide studied with timeresolved recoil-frame covariance imaging
Multi-channel photodissociation and XUV-induced charge transfer dynamics in strong-field-ionized methyl iodide studied with timeresolved recoil-frame covariance imaging
The photodissociation dynamics of strong-field ionized methyl iodide (\ce{CH3I}) were probed using intense extreme ultraviolet (XUV) radiation produced by the SPring-8 Angstrom Compact free electron LAser (SACLA). Strong-field ionization and subsequent fragmentation of CH3I was initiated by an intense femtosecond infrared (IR) pulse. The ensuing fragmentation and charge-transfer processes following multiple ionization by the XUV pulse at a range of pump-probe delays were followed in a multi-mass ion velocity-map imaging (VMI) experiment. Simultaneous imaging of a wide range of resultant ions allowed for additional insight into the complex dynamics by elucidating correlations between the momenta of different fragment ions using time-resolved recoil-frame covariance imaging analysis. The comprehensive picture of the photodynamics that can be extracted provides promising evidence that the techniques described here could be applied to study ultrafast photochemistry in a range of molecular systems at high count rates using state-of-the-art advanced light sources.
1359-6640
Allum, Felix
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Anders, Nils
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Minns, Russell
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Brouard, Mark
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Bucksbaum, Philip H
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Burt, Michael
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Downes-Ward, Briony Ruth
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Grundmann, Sven
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Harries, James
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Ishimura, Yudai
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Kaiser, Leon
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Kukk, Edwin
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Niskanen, Johannes
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O'Neal, Jordan
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Owada, Shigeki
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Pickering, James
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Rolles, Daniel
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Rudenko, Artem
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Saito, Shu
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Ueda, Kiyoshi
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Vallance, Claire
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Werby, Nicholas
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Woodhouse, Joanne
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You, Daehyun
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Ziaee, Farzaneh
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Driver, Taran
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Forbes, Ruaridh
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Allum, Felix
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Anders, Nils
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Minns, Russell
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Brouard, Mark
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Bucksbaum, Philip H
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Downes-Ward, Briony Ruth
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Harries, James
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Ishimura, Yudai
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Iwayama, Hiroshi
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Kaiser, Leon
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Liu, Xiaojing
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O'Neal, Jordan
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Owada, Shigeki
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Pickering, James
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Rolles, Daniel
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Rudenko, Artem
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Saito, Shu
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Ueda, Kiyoshi
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Vallance, Claire
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Werby, Nicholas
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Woodhouse, Joanne
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You, Daehyun
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Ziaee, Farzaneh
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Forbes, Ruaridh
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Allum, Felix, Anders, Nils, Minns, Russell, Brouard, Mark, Bucksbaum, Philip H, Burt, Michael, Downes-Ward, Briony Ruth, Grundmann, Sven, Harries, James, Ishimura, Yudai, Iwayama, Hiroshi, Kaiser, Leon, Kukk, Edwin, Lee, Jason, Liu, Xiaojing, Nagaya, Kiyonobu, Niozu, Akinobu, Niskanen, Johannes, O'Neal, Jordan, Owada, Shigeki, Pickering, James, Rolles, Daniel, Rudenko, Artem, Saito, Shu, Ueda, Kiyoshi, Vallance, Claire, Werby, Nicholas, Woodhouse, Joanne, You, Daehyun, Ziaee, Farzaneh, Driver, Taran and Forbes, Ruaridh (2020) Multi-channel photodissociation and XUV-induced charge transfer dynamics in strong-field-ionized methyl iodide studied with timeresolved recoil-frame covariance imaging. Faraday Discussions. (doi:10.1039/D0FD00115E).

Record type: Article

Abstract

The photodissociation dynamics of strong-field ionized methyl iodide (\ce{CH3I}) were probed using intense extreme ultraviolet (XUV) radiation produced by the SPring-8 Angstrom Compact free electron LAser (SACLA). Strong-field ionization and subsequent fragmentation of CH3I was initiated by an intense femtosecond infrared (IR) pulse. The ensuing fragmentation and charge-transfer processes following multiple ionization by the XUV pulse at a range of pump-probe delays were followed in a multi-mass ion velocity-map imaging (VMI) experiment. Simultaneous imaging of a wide range of resultant ions allowed for additional insight into the complex dynamics by elucidating correlations between the momenta of different fragment ions using time-resolved recoil-frame covariance imaging analysis. The comprehensive picture of the photodynamics that can be extracted provides promising evidence that the techniques described here could be applied to study ultrafast photochemistry in a range of molecular systems at high count rates using state-of-the-art advanced light sources.

Text
Multi-channelphotodissociation and XUV-induced - Accepted Manuscript
Restricted to Repository staff only until 18 October 2021.
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Accepted/In Press date: 13 October 2020
e-pub ahead of print date: 18 October 2020

Identifiers

Local EPrints ID: 445279
URI: http://eprints.soton.ac.uk/id/eprint/445279
ISSN: 1359-6640
PURE UUID: 689f2f69-c057-4bc8-a82d-d2a7d784e99a
ORCID for Russell Minns: ORCID iD orcid.org/0000-0001-6775-2977

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Date deposited: 01 Dec 2020 17:30
Last modified: 18 Feb 2021 17:17

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Contributors

Author: Felix Allum
Author: Nils Anders
Author: Russell Minns ORCID iD
Author: Mark Brouard
Author: Philip H Bucksbaum
Author: Michael Burt
Author: Briony Ruth Downes-Ward
Author: Sven Grundmann
Author: James Harries
Author: Yudai Ishimura
Author: Hiroshi Iwayama
Author: Leon Kaiser
Author: Edwin Kukk
Author: Jason Lee
Author: Xiaojing Liu
Author: Kiyonobu Nagaya
Author: Akinobu Niozu
Author: Johannes Niskanen
Author: Jordan O'Neal
Author: Shigeki Owada
Author: James Pickering
Author: Daniel Rolles
Author: Artem Rudenko
Author: Shu Saito
Author: Kiyoshi Ueda
Author: Claire Vallance
Author: Nicholas Werby
Author: Joanne Woodhouse
Author: Daehyun You
Author: Farzaneh Ziaee
Author: Taran Driver
Author: Ruaridh Forbes

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