Time-resolved momentum imaging system for molecular dynamics studies using a tabletop ultrafast extreme-ultraviolet light source

Etienne Gagnon, Arvinder Singh Sandhu, Ariel Paul, Kim Hagen, Achim Czasch, Till Jahnke, Predrag Ranitovic, C. Lewis Cocke, Barry Walker, Margaret M. Murnane, Henry C. Kapteyn

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

We describe a momentum imaging setup for direct time-resolved studies of ionization-induced molecular dynamics. This system uses a tabletop ultrafast extreme-ultraviolet (EUV) light source based on high harmonic upconversion of a femtosecond laser. The high photon energy (around 42 eV) allows access to inner-valence states of a variety of small molecules via single photon excitation, while the sub- -10-fs pulse duration makes it possible to follow the resulting dynamics in real time. To obtain a complete picture of molecular dynamics following EUV induced photofragmentation, we apply the versatile cold target recoil ion momentum spectroscopy reaction microscope technique, which makes use of coincident three-dimensional momentum imaging of fragments resulting from photoexcitation. This system is capable of pump-probe spectroscopy by using a combination of EUV and IR laser pulses with either beam as a pump or probe pulse. We report several experiments performed using this system.

Original languageEnglish (US)
Article number063102
JournalReview of Scientific Instruments
Volume79
Issue number6
DOIs
StatePublished - 2008

Fingerprint

ultraviolet radiation
Imaging systems
Light sources
Molecular dynamics
Momentum
light sources
molecular dynamics
momentum
Photons
Pumps
Spectroscopy
pumps
Imaging techniques
recoil ions
Time and motion study
probes
Photoexcitation
photons
pulses
Ultrashort pulses

ASJC Scopus subject areas

  • Instrumentation
  • Physics and Astronomy (miscellaneous)

Cite this

Time-resolved momentum imaging system for molecular dynamics studies using a tabletop ultrafast extreme-ultraviolet light source. / Gagnon, Etienne; Sandhu, Arvinder Singh; Paul, Ariel; Hagen, Kim; Czasch, Achim; Jahnke, Till; Ranitovic, Predrag; Cocke, C. Lewis; Walker, Barry; Murnane, Margaret M.; Kapteyn, Henry C.

In: Review of Scientific Instruments, Vol. 79, No. 6, 063102, 2008.

Research output: Contribution to journalArticle

Gagnon, E, Sandhu, AS, Paul, A, Hagen, K, Czasch, A, Jahnke, T, Ranitovic, P, Cocke, CL, Walker, B, Murnane, MM & Kapteyn, HC 2008, 'Time-resolved momentum imaging system for molecular dynamics studies using a tabletop ultrafast extreme-ultraviolet light source', Review of Scientific Instruments, vol. 79, no. 6, 063102. https://doi.org/10.1063/1.2930869
Gagnon, Etienne ; Sandhu, Arvinder Singh ; Paul, Ariel ; Hagen, Kim ; Czasch, Achim ; Jahnke, Till ; Ranitovic, Predrag ; Cocke, C. Lewis ; Walker, Barry ; Murnane, Margaret M. ; Kapteyn, Henry C. / Time-resolved momentum imaging system for molecular dynamics studies using a tabletop ultrafast extreme-ultraviolet light source. In: Review of Scientific Instruments. 2008 ; Vol. 79, No. 6.
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AU - Czasch, Achim

AU - Jahnke, Till

AU - Ranitovic, Predrag

AU - Cocke, C. Lewis

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