activity
20102025
most citedUltrafast Internal Conversion in Ethylene I. The Excited State Lifetime

141 citations · 286 across the 9 of their papers we have counts for

collaborators

9 papers

physics.chem-ph2025★ 1 cited

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…

physics.chem-ph2020★ 10 cited

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…

physics.chem-ph2020★ 2 cited

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…

physics.chem-ph2019★ 13 cited

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…

physics.chem-ph2018★ 13 cited

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…

physics.chem-ph2016★ 3 cited

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…