title: High-repetition-rate and high-photon-flux 70 eV high-harmonic source for coincidence ion imaging of gas-phase molecules.
abstract: Unraveling and controlling chemical dynamics requires techniques to image structural changes of molecules with femtosecond temporal and picometer spatial resolution. Ultrashort-pulse x-ray free-electron lasers have significantly advanced the field by enabling advanced pump-probe schemes. There is an increasing interest in using table-top photon sources enabled by high-harmonic generation of ultrashort-pulse lasers for such studies. We present a novel high-harmonic source driven by a 100 kHz fiber laser system, which delivers 1011photons/s in a single 1.3 eV bandwidth harmonic at 68.6 eV. The combination of record-high photon flux and high repetition rate paves the way for time-resolved studies of the dissociation dynamics of inner-shell ionized molecules in a coincidence detection scheme. First coincidence measurements on CH3I are shown and it is outlined how the anticipated advancement of fiber laser technology and improved sample delivery will, in the next step, allow pump-probe studies of ultrafast molecular dynamics with table-top XUV-photon sources. These table-top sources can provide significantly higher repetition rates than the currently operating free-electron lasers and they offer very high temporal resolution due to the intrinsically small timing jitter between pump and probe pulses.
authors: Jan
authors: J
authors: Rothhardt
authors: Steffen
authors: S
authors: Hädrich
authors: Yariv
authors: Y
authors: Shamir
authors: Maxim
authors: M
authors: Tschnernajew
authors: Robert
authors: R
authors: Klas
authors: Armin
authors: A
authors: Hoffmann
authors: Getnet K
authors: GK
authors: Tadesse
authors: Arno
authors: A
authors: Klenke
authors: Thomas
authors: T
authors: Gottschall
authors: Tino
authors: T
authors: Eidam
authors: Jens
authors: J
authors: Limpert
authors: Andreas
authors: A
authors: Tünnermann
authors: Rebecca
authors: R
authors: Boll
authors: Cedric
authors: C
authors: Bomme
authors: Hatem
authors: H
authors: Dachraoui
authors: Benjamin
authors: B
authors: Erk
authors: Michele
authors: M
authors: Di Fraia
authors: Daniel A
authors: DA
authors: Horke
authors: Thomas
authors: T
authors: Kierspel
authors: Terence
authors: T
authors: Mullins
authors: Andreas
authors: A
authors: Przystawik
authors: Evgeny
authors: E
authors: Savelyev
authors: Joss
authors: J
authors: Wiese
authors: Tim
authors: T
authors: Laarmann
authors: Jochen
authors: J
authors: Küpper
authors: Daniel
authors: D
authors: Rolles