Probing isomer interconversion in anionic water clusters using an Ar-mediated pump-probe approach: Combining vibrational predissociation and velocity-map photoelectron imaging spectroscopies

2008 ◽  
Vol 128 (23) ◽  
pp. 234311 ◽  
Author(s):  
Laura R. McCunn ◽  
George H. Gardenier ◽  
Timothy L. Guasco ◽  
Ben M. Elliott ◽  
Joseph C. Bopp ◽  
...  
Keyword(s):  
Water Clusters ◽  
Photoelectron Imaging ◽  
Pump Probe ◽  
Vibrational Predissociation ◽  
Probe Approach

The pump-probe approach to coherent backscattering of intense laser light from cold atoms

2009 ◽  
Author(s):  
Tobias Geiger ◽  
Thomas Wellens ◽  
Vyacheslav Shatokhin ◽  
Andreas Buchleitner ◽  
Dmitry N. Chigrin
Keyword(s):  
Cold Atoms ◽  
Laser Light ◽  
Intense Laser ◽  
Pump Probe ◽  
Coherent Backscattering ◽  
Probe Approach

scholarly journals Probing Attosecond Electron Coherence in Molecular Charge Migration by Ultrafast X-Ray Photoelectron Imaging

2019 ◽  
Vol 9 (9) ◽  
pp. 1941 ◽  
Author(s):  
Kai-Jun Yuan ◽  
André D Bandrauk
Keyword(s):  
Electron Dynamics ◽  
Charge Migration ◽  
Photoelectron Imaging ◽  
Time Resolved ◽  
Pump Probe ◽  
New Approach ◽  
X Ray ◽  
Chemistry Research ◽  
Molecular Charge ◽  
Electron Coherence

Electron coherence is a fundamental quantum phenomenon in today’s ultrafast physics and chemistry research. Based on attosecond pump–probe schemes, ultrafast X-ray photoelectron imaging of molecules was used to monitor the coherent electron dynamics which is created by an XUV pulse. We performed simulations on the molecular ion H 2 + by numerically solving time-dependent Schrödinger equations. It was found that the X-ray photoelectron angular and momentum distributions depend on the time delay between the XUV pump and soft X-ray probe pulses. Varying the polarization and helicity of the soft X-ray probe pulse gave rise to a modulation of the time-resolved photoelectron distributions. The present results provide a new approach for exploring ultrafast coherent electron dynamics and charge migration in reactions of molecules on the attosecond time scale.

Pump-probe photoelectron imaging with 90-nm excitation pulses

2014 ◽  
Author(s):  
Shunsuke Adachi ◽  
Motoki Sato ◽  
Yoshi-ichi Suzuki ◽  
Toshinori Suzuki
Keyword(s):  
Photoelectron Imaging ◽  
Pump Probe

scholarly journals Electron scattering in large water clusters from photoelectron imaging with high harmonic radiation

2018 ◽  
Vol 20 (24) ◽  
pp. 16364-16371 ◽  
Author(s):  
Thomas E. Gartmann ◽  
Sebastian Hartweg ◽  
Loren Ban ◽  
Egor Chasovskikh ◽  
Bruce L. Yoder ◽  
...  
Keyword(s):  
Kinetic Energy ◽  
Electron Scattering ◽  
Condensed Phase ◽  
Water Clusters ◽  
High Harmonic ◽  
Photoelectron Imaging ◽  
Intermediate Case ◽  
Harmonic Radiation ◽  
Large Water

The scattering of low kinetic energy electrons in large water clusters can be treated as an intermediate case between gas and condensed phase scattering.

Pump-Probe Photoelectron Imaging with 90-nm Excitation Pulses

2015 ◽  
pp. 164-167
Author(s):  
Shunsuke Adachi ◽  
Motoki Sato ◽  
Yoshi-ichi Suzuki ◽  
Toshinori Suzuki
Keyword(s):  
Photoelectron Imaging ◽  
Pump Probe

scholarly journals Infrared vibrational predissociation spectra of large water clusters

1987 ◽  
Vol 141 (1-2) ◽  
pp. 1-6 ◽  
Author(s):  
Ralph H. Page ◽  
Matthew F. Vernon ◽  
Y.R. Shen ◽  
Y.T. Lee
Keyword(s):  
Water Clusters ◽  
Vibrational Predissociation ◽  
Large Water

scholarly journals The limit of time resolution in frequency modulation atomic force microscopy by a pump-probe approach

2017 ◽  
Vol 110 (5) ◽  
pp. 053111 ◽  
Author(s):  
Zeno Schumacher ◽  
Andreas Spielhofer ◽  
Yoichi Miyahara ◽  
Peter Grutter
Keyword(s):  
Atomic Force Microscopy ◽  
Time Resolution ◽  
Frequency Modulation ◽  
Pump Probe ◽  
Force Microscopy ◽  
Atomic Force ◽  
Probe Approach

scholarly journals Real-time observation of water radiolysis and hydrated electron formation induced by extreme-ultraviolet pulses

2020 ◽  
Vol 6 (3) ◽  
pp. eaaz0385 ◽  
Author(s):  
Vít Svoboda ◽  
Rupert Michiels ◽  
Aaron C. LaForge ◽  
Jakub Med ◽  
Frank Stienkemeier ◽  
...  
Keyword(s):  
Radiation Damage ◽  
Water Clusters ◽  
Extreme Ultraviolet ◽  
Radiation Chemistry ◽  
Ab Initio Molecular Dynamics ◽  
Water Radiolysis ◽  
Photoelectron Imaging ◽  
Time Resolved ◽  
Imaging Results ◽  
Comprehensive Picture

The dominant pathway of radiation damage begins with the ionization of water. Thus far, however, the underlying primary processes could not be conclusively elucidated. Here, we directly study the earliest steps of extreme ultraviolet (XUV)–induced water radiolysis through one-photon excitation of large water clusters using time-resolved photoelectron imaging. Results are presented for H2O and D2O clusters using femtosecond pump pulses centered at 133 or 80 nm. In both excitation schemes, hydrogen or proton transfer is observed to yield a prehydrated electron within 30 to 60 fs, followed by its solvation in 0.3 to 1.0 ps and its decay through geminate recombination on a ∼10-ps time scale. These results are interpreted by comparison with detailed multiconfigurational non-adiabatic ab-initio molecular dynamics calculations. Our results provide the first comprehensive picture of the primary steps of radiation chemistry and radiation damage and demonstrate new approaches for their study with unprecedented time resolution.

scholarly journals Infrared vibrational predissociation spectroscopy of water clusters by the crossed laser‐molecular beam technique

1982 ◽  
Vol 77 (1) ◽  
pp. 47-57 ◽  
Author(s):  
M. F. Vernon ◽  
D. J. Krajnovich ◽  
H. S. Kwok ◽  
J. M. Lisy ◽  
Y. R. Shen ◽  
...  
Keyword(s):  
Molecular Beam ◽  
Water Clusters ◽  
Vibrational Predissociation ◽  
Beam Technique
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