141 citations · 286 across the 9 of their papers we have counts for
8 papers · 1 filter
Interplay between ultrafast electronic and librational dynamics in liquid nitrobenzene probed with two-color four-wave mixing
Niranjan Shivaram, Richard Thurston, Ali Belkacem +3
We present an experimental and theoretical study of the interplay between ultrafast electron dynamics and librational dynamics in liquid nitrobenzene. A femtosecond ultraviolet pul…
Selective Bond-Breaking in Formic Acid by Dissociative Electron Attachment
D. S. Slaughter, Th. Weber, A. Belkacem +4
We report the results of a joint experimental {and} theoretical study of dissociative electron attachment to formic acid (HCOOH) in the 6-9 eV region, where H fragment ions are…
Time-Resolved Ultrafast Transient Polarization Spectroscopy to Investigate Nonlinear Processes and Dynamics in Electronically Excited Molecules on the Femtosecond Time Scale
Richard Thurston, Matthew M. Brister, Ali Belkacem +3
We report a novel experimental technique to investigate ultrafast dynamics in photoexcited molecules by probing the third-order nonlinear optical susceptibility. A non-colinear 3-p…
Ultrafast dynamics of excited electronic states in nitrobenzene measured by ultrafast transient polarization spectroscopy
Richard Thurston, Matthew M. Brister, Liang Z. Tan +7
We investigate ultrafast dynamics of the lowest singlet excited electronic state in liquid nitrobenzene using Ultrafast Transient Polarization Spectroscopy (UTPS), extending the we…
Ultrafast Photodissociation Dynamics and Nonadiabatic Coupling Between Excited Electronic States of Methanol Probed by Time-Resolved Photoelectron Spectroscopy
Elio G. Champenois, Loren Greenman, Niranjan Shivaram +6
The electronic and nuclear dynamics in methanol, following 156~nm photoexcitation, are investigated by combining a detailed analysis of time-resolved photoelectron spectroscopy exp…
Focal overlap gating in velocity map imaging to achieve high signal-to-noise ratio in photo-ion pump-probe experiments
Niranjan Shivaram, Elio G Champenois, James P Cryan +3
We demonstrate a new technique in velocity map imaging (VMI) that allows spatial gating of the laser focal overlap region in time resolved pump-probe experiments. This significantl…
Ultrafast Internal Conversion in Ethylene. II. Mechanisms and Pathways for Quenching and Hydrogen Elimination
T. K. Allison, H. Tao, W. J. Glover +8
Through a combined experimental and theoretical approach, we study the nonadiabatic dynamics of the prototypical ethylene (CH) molecule upon excitation w…
Ultrafast Internal Conversion in Ethylene I. The Excited State Lifetime
H. Tao, T. K. Allison, T. W. Wright +7
Using a combined theoretical and experimental approach, we investigate the non-adiabatic dynamics of the prototypical ethylene (C2H4) molecule upon π \to π* excitation. In this fir…