4 papers
Non-linear X-ray Coherent Diffractive Imaging
Arnab Sarkar, Allan S. Johnson
The advent of nonlinear X-ray processes like sum-frequency generation and four-wave mixing raises the possibility of non-linear X-ray imaging, combining the high-resolution and ele…
Electron coherent phonon coupling in PrCaMnO measured with ultrafast broadband spectroscopy
Emmanuel B. Amuah, Khalid M. Siddiqui, Maurizio Monti +5
Photoexcitation of single-layered LaMnMnO has played a key role in understanding orbital ordering and non-thermal states in the manganites. However, while orbit…
Coherent X-ray Imaging of Stochastic Dynamics
Arnab Sarkar, Allan S. Johnson
Condensed phase systems often exhibit a mixture of deterministic and stochastic dynamics at the nanoscale which are essential to understanding their function, but can be challengin…
Signature of attochemical quantum interference upon ionization and excitation of an electronic wavepacket in fluoro-benzene
Anthony Ferté, Dane Austin, Allan S. Johnson +4
Ultrashort pulses can excite or ionize molecules and populate coherent electronic wavepackets, inducing complex dynamics. In this work, we simulate the coupled electron-nuclear dyn…