Coulomb-explosion imaging of concurrent CH2BrI photodissociation dynamics

Michael Burt, Rebecca Boll, Jason W. L. Lee, Kasra Amini, Hansjochen Kockert, Claire Vallance, Alexander S. Gentleman, Stuart R. Mackenzie, Sadia Bari, Cedric Bomme, Stefan Duesterer, Benjamin Erk, Bastian Manschwetus, Erland Mueller, Dimitrios Rompotis, Evgeny Savelyev, Nora Schirmel, Simone Techert, Rolf Treusch, Jochen KuepperSebastian Trippel, Joss Wiese, Henrik Stapelfeldt, Barbara Cunha de Miranda, Renaud Guillemin, Iyas Ismail, Loic Journel, Tatiana Marchenko, Jerome Palaudoux, Francis Penent, Maria Novella Piancastelli, Marc Simon, Oksana Travnikova, Felix Brausse, Gildas Goldsztejn, Arnaud Rouzee, Marie Geleoc, Romain Geneaux, Thierry Ruchon, Jonathan Underwood, David M. P. Holland, Andrey S. Mereshchenko, Pavel K. Olshin, Per Johnsson, Sylvain Maclot, Jan Lahl, Artem Rudenko, Farzaneh Ziaee, Mark Brouard, Daniel Rolles

Research output

13 Citations (Scopus)

Abstract

The dynamics following laser-induced molecular photodissociation of gas-phase CH2BrI at 271.6 nm were investigated by time-resolved Coulomb-explosion imaging using intense near-IR femtosecond laser pulses. The observed delay-dependent photofragment momenta reveal that CH2BrI undergoes C-I cleavage, depositing 65.6% of the available energy into internal product states, and that absorption of a second UV photon breaks the C-Br bond of C(H)2Br. Simulations confirm that this mechanism is consistent with previous data recorded at 248 nm, demonstrating the sensitivity of Coulomb-explosion imaging as a real-time probe of chemical dynamics.

Original languageEnglish
Article number043415
Number of pages8
JournalPhysical Review A
Volume96
Issue number4
DOIs
Publication statusPublished - 17 Oct 2017

Cite this

Burt, M., Boll, R., Lee, J. W. L., Amini, K., Kockert, H., Vallance, C., ... Rolles, D. (2017). Coulomb-explosion imaging of concurrent CH2BrI photodissociation dynamics. Physical Review A, 96(4), [043415]. https://doi.org/10.1103/PhysRevA.96.043415
Burt, Michael ; Boll, Rebecca ; Lee, Jason W. L. ; Amini, Kasra ; Kockert, Hansjochen ; Vallance, Claire ; Gentleman, Alexander S. ; Mackenzie, Stuart R. ; Bari, Sadia ; Bomme, Cedric ; Duesterer, Stefan ; Erk, Benjamin ; Manschwetus, Bastian ; Mueller, Erland ; Rompotis, Dimitrios ; Savelyev, Evgeny ; Schirmel, Nora ; Techert, Simone ; Treusch, Rolf ; Kuepper, Jochen ; Trippel, Sebastian ; Wiese, Joss ; Stapelfeldt, Henrik ; de Miranda, Barbara Cunha ; Guillemin, Renaud ; Ismail, Iyas ; Journel, Loic ; Marchenko, Tatiana ; Palaudoux, Jerome ; Penent, Francis ; Piancastelli, Maria Novella ; Simon, Marc ; Travnikova, Oksana ; Brausse, Felix ; Goldsztejn, Gildas ; Rouzee, Arnaud ; Geleoc, Marie ; Geneaux, Romain ; Ruchon, Thierry ; Underwood, Jonathan ; Holland, David M. P. ; Mereshchenko, Andrey S. ; Olshin, Pavel K. ; Johnsson, Per ; Maclot, Sylvain ; Lahl, Jan ; Rudenko, Artem ; Ziaee, Farzaneh ; Brouard, Mark ; Rolles, Daniel. / Coulomb-explosion imaging of concurrent CH2BrI photodissociation dynamics. In: Physical Review A. 2017 ; Vol. 96, No. 4.
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title = "Coulomb-explosion imaging of concurrent CH2BrI photodissociation dynamics",
abstract = "The dynamics following laser-induced molecular photodissociation of gas-phase CH2BrI at 271.6 nm were investigated by time-resolved Coulomb-explosion imaging using intense near-IR femtosecond laser pulses. The observed delay-dependent photofragment momenta reveal that CH2BrI undergoes C-I cleavage, depositing 65.6{\%} of the available energy into internal product states, and that absorption of a second UV photon breaks the C-Br bond of C(H)2Br. Simulations confirm that this mechanism is consistent with previous data recorded at 248 nm, demonstrating the sensitivity of Coulomb-explosion imaging as a real-time probe of chemical dynamics.",
keywords = "LASER-FIELD, 193 NM, CHLOROIODOMETHANE, PHOTOELECTRON, ULTRAVIOLET, IONIZATION, MOLECULES, PULSES, CH2ICL, CH3I",
author = "Michael Burt and Rebecca Boll and Lee, {Jason W. L.} and Kasra Amini and Hansjochen Kockert and Claire Vallance and Gentleman, {Alexander S.} and Mackenzie, {Stuart R.} and Sadia Bari and Cedric Bomme and Stefan Duesterer and Benjamin Erk and Bastian Manschwetus and Erland Mueller and Dimitrios Rompotis and Evgeny Savelyev and Nora Schirmel and Simone Techert and Rolf Treusch and Jochen Kuepper and Sebastian Trippel and Joss Wiese and Henrik Stapelfeldt and {de Miranda}, {Barbara Cunha} and Renaud Guillemin and Iyas Ismail and Loic Journel and Tatiana Marchenko and Jerome Palaudoux and Francis Penent and Piancastelli, {Maria Novella} and Marc Simon and Oksana Travnikova and Felix Brausse and Gildas Goldsztejn and Arnaud Rouzee and Marie Geleoc and Romain Geneaux and Thierry Ruchon and Jonathan Underwood and Holland, {David M. P.} and Mereshchenko, {Andrey S.} and Olshin, {Pavel K.} and Per Johnsson and Sylvain Maclot and Jan Lahl and Artem Rudenko and Farzaneh Ziaee and Mark Brouard and Daniel Rolles",
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month = "10",
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language = "Английский",
volume = "96",
journal = "Physical Review A - Atomic, Molecular, and Optical Physics",
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Burt, M, Boll, R, Lee, JWL, Amini, K, Kockert, H, Vallance, C, Gentleman, AS, Mackenzie, SR, Bari, S, Bomme, C, Duesterer, S, Erk, B, Manschwetus, B, Mueller, E, Rompotis, D, Savelyev, E, Schirmel, N, Techert, S, Treusch, R, Kuepper, J, Trippel, S, Wiese, J, Stapelfeldt, H, de Miranda, BC, Guillemin, R, Ismail, I, Journel, L, Marchenko, T, Palaudoux, J, Penent, F, Piancastelli, MN, Simon, M, Travnikova, O, Brausse, F, Goldsztejn, G, Rouzee, A, Geleoc, M, Geneaux, R, Ruchon, T, Underwood, J, Holland, DMP, Mereshchenko, AS, Olshin, PK, Johnsson, P, Maclot, S, Lahl, J, Rudenko, A, Ziaee, F, Brouard, M & Rolles, D 2017, 'Coulomb-explosion imaging of concurrent CH2BrI photodissociation dynamics', Physical Review A, vol. 96, no. 4, 043415. https://doi.org/10.1103/PhysRevA.96.043415

Coulomb-explosion imaging of concurrent CH2BrI photodissociation dynamics. / Burt, Michael; Boll, Rebecca; Lee, Jason W. L.; Amini, Kasra; Kockert, Hansjochen; Vallance, Claire; Gentleman, Alexander S.; Mackenzie, Stuart R.; Bari, Sadia; Bomme, Cedric; Duesterer, Stefan; Erk, Benjamin; Manschwetus, Bastian; Mueller, Erland; Rompotis, Dimitrios; Savelyev, Evgeny; Schirmel, Nora; Techert, Simone; Treusch, Rolf; Kuepper, Jochen; Trippel, Sebastian; Wiese, Joss; Stapelfeldt, Henrik; de Miranda, Barbara Cunha; Guillemin, Renaud; Ismail, Iyas; Journel, Loic; Marchenko, Tatiana; Palaudoux, Jerome; Penent, Francis; Piancastelli, Maria Novella; Simon, Marc; Travnikova, Oksana; Brausse, Felix; Goldsztejn, Gildas; Rouzee, Arnaud; Geleoc, Marie; Geneaux, Romain; Ruchon, Thierry; Underwood, Jonathan; Holland, David M. P.; Mereshchenko, Andrey S.; Olshin, Pavel K.; Johnsson, Per; Maclot, Sylvain; Lahl, Jan; Rudenko, Artem; Ziaee, Farzaneh; Brouard, Mark; Rolles, Daniel.

In: Physical Review A, Vol. 96, No. 4, 043415, 17.10.2017.

Research output

TY - JOUR

T1 - Coulomb-explosion imaging of concurrent CH2BrI photodissociation dynamics

AU - Burt, Michael

AU - Boll, Rebecca

AU - Lee, Jason W. L.

AU - Amini, Kasra

AU - Kockert, Hansjochen

AU - Vallance, Claire

AU - Gentleman, Alexander S.

AU - Mackenzie, Stuart R.

AU - Bari, Sadia

AU - Bomme, Cedric

AU - Duesterer, Stefan

AU - Erk, Benjamin

AU - Manschwetus, Bastian

AU - Mueller, Erland

AU - Rompotis, Dimitrios

AU - Savelyev, Evgeny

AU - Schirmel, Nora

AU - Techert, Simone

AU - Treusch, Rolf

AU - Kuepper, Jochen

AU - Trippel, Sebastian

AU - Wiese, Joss

AU - Stapelfeldt, Henrik

AU - de Miranda, Barbara Cunha

AU - Guillemin, Renaud

AU - Ismail, Iyas

AU - Journel, Loic

AU - Marchenko, Tatiana

AU - Palaudoux, Jerome

AU - Penent, Francis

AU - Piancastelli, Maria Novella

AU - Simon, Marc

AU - Travnikova, Oksana

AU - Brausse, Felix

AU - Goldsztejn, Gildas

AU - Rouzee, Arnaud

AU - Geleoc, Marie

AU - Geneaux, Romain

AU - Ruchon, Thierry

AU - Underwood, Jonathan

AU - Holland, David M. P.

AU - Mereshchenko, Andrey S.

AU - Olshin, Pavel K.

AU - Johnsson, Per

AU - Maclot, Sylvain

AU - Lahl, Jan

AU - Rudenko, Artem

AU - Ziaee, Farzaneh

AU - Brouard, Mark

AU - Rolles, Daniel

PY - 2017/10/17

Y1 - 2017/10/17

N2 - The dynamics following laser-induced molecular photodissociation of gas-phase CH2BrI at 271.6 nm were investigated by time-resolved Coulomb-explosion imaging using intense near-IR femtosecond laser pulses. The observed delay-dependent photofragment momenta reveal that CH2BrI undergoes C-I cleavage, depositing 65.6% of the available energy into internal product states, and that absorption of a second UV photon breaks the C-Br bond of C(H)2Br. Simulations confirm that this mechanism is consistent with previous data recorded at 248 nm, demonstrating the sensitivity of Coulomb-explosion imaging as a real-time probe of chemical dynamics.

AB - The dynamics following laser-induced molecular photodissociation of gas-phase CH2BrI at 271.6 nm were investigated by time-resolved Coulomb-explosion imaging using intense near-IR femtosecond laser pulses. The observed delay-dependent photofragment momenta reveal that CH2BrI undergoes C-I cleavage, depositing 65.6% of the available energy into internal product states, and that absorption of a second UV photon breaks the C-Br bond of C(H)2Br. Simulations confirm that this mechanism is consistent with previous data recorded at 248 nm, demonstrating the sensitivity of Coulomb-explosion imaging as a real-time probe of chemical dynamics.

KW - LASER-FIELD

KW - 193 NM

KW - CHLOROIODOMETHANE

KW - PHOTOELECTRON

KW - ULTRAVIOLET

KW - IONIZATION

KW - MOLECULES

KW - PULSES

KW - CH2ICL

KW - CH3I

U2 - 10.1103/PhysRevA.96.043415

DO - 10.1103/PhysRevA.96.043415

M3 - статья

VL - 96

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

SN - 1050-2947

IS - 4

M1 - 043415

ER -

Burt M, Boll R, Lee JWL, Amini K, Kockert H, Vallance C et al. Coulomb-explosion imaging of concurrent CH2BrI photodissociation dynamics. Physical Review A. 2017 Oct 17;96(4). 043415. https://doi.org/10.1103/PhysRevA.96.043415