Gagnon, EtienneSandhu, Arvinder S.Paul, ArielHagen, KimCzasch, AchimJahnke, TillRanitovic, PredragLewis Cocke, C.Walker, BarryMurnane, Margaret M.Kapteyn, Henry C.2023-12-072023-12-072008-06-05https://hdl.handle.net/2097/43742We 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 42eV) 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.This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in [Time-resolved momentum imaging system for molecular dynamics studies using a tabletop ultrafast extremhttp://rightsstatements.org/vocab/InC/1.0/http://web.archive.org/web/20180624131647/https://publishing.aip.org/authors/web-posting-guidelinesText