229 citations · 663 across the 21 of their papers we have counts for
14 papers · 1 filter
Quantum Interference in Two-Atom Resonant X-ray Scattering of an Intense Attosecond Pulse
Akilesh Venkatesh, Phay J. Ho
We theoretically investigate resonant x-ray scattering from two non-interacting Ne+ ions driven by an intense attosecond pulse using a non-relativistic, QED-based time-dependent fr…
Effect of Rabi dynamics in resonant x-ray scattering of intense attosecond pulses
Akilesh Venkatesh, Phay J. Ho
We theoretically study the effects of Rabi oscillations on resonant x-ray scattering in Ne using intense attosecond and few-femtosecond pulses. The total photon yield strongly…
Theory of resonant x-ray scattering with ultrafast intense pulses
Akilesh Venkatesh, Phay J. Ho
We present a time-dependent Schrödinger equation (TDSE) approach within a non-relativistic quantum electrodynamics (QED) framework to investigate resonant x-ray scattering under in…
X-ray induced electron and ion fragmentation dynamics in IBr
Phay J. Ho, Dipanwita Ray, Stefan Lehmann +9
Characterization of the inner-shell decay processes in molecules containing heavy elements is key to understanding x-ray damage of molecules and materials and for medical applicati…
Resonant propagation of x-rays from the linear to the nonlinear regime
Kai Li, Marie Labeye, Phay J. Ho +2
We present a theoretical study of temporal, spectral, and spatial reshaping of intense, ultrafast x-ray pulses propagating through a resonant medium. Our calculations are based on…
Ultrafast x-ray-induced nuclear dynamics in diatomic molecules using femtosecond x-ray/x-ray pump-probe spectroscopy
C. S. Lehmann, A. Picón, C. Bostedt +22
The capability of generating two intense, femtosecond x-ray pulses with controlled time delay opens the possibility of performing time-resolved experiments for x-ray induced phenom…
Decoherence in Attosecond Photoionization
Stefan Pabst, Loren Greenman, Phay J. Ho +2
The creation of superpositions of hole states via single-photon ionization using attosecond extreme-ultraviolet pulses is studied with the time-dependent configuration interaction…
Computational studies of x-ray scattering from three-dimensionally-aligned asymmetric-top molecules
Stefan Pabst, Phay J. Ho, Robin Santra
We theoretically and numerically analyze x-ray scattering from asymmetric-top molecules three-dimensionally aligned using elliptically polarized laser light. A rigid-rotor model is…
Using strong electromagnetic fields to control x-ray processes
Linda Young, Christian Buth, Robert W. Dunford +7
Exploration of a new ultrafast-ultrasmall frontier in atomic and molecular physics has begun. Not only is is possible to control outer-shell electron dynamics with intense ultrafas…
Nonsequential double ionization: a comparison of classical simulations and -matrix results
Phay J. Ho, X. Liu, W. Becker
In a fully classical simulation, we investigate the recollision mechanism of non-sequential double ionization (NSDI) and its manifestation in the end-of-pulse electron momentum dis…
In-plane Theory of Non-Sequential Triple Ionization
Phay J. Ho, J. H. Eberly
We describe first-principles in-plane calculations of non-sequential triple ionization (NSTI) of atoms in a linearly polarized intense laser pulse. In a fully classically correlate…
Classical Effects of Laser Pulse Duration on Strong-field Double Ionization
Phay J. Ho, J. H. Eberly
We use classical electron ensembles and the aligned-electron approximation to examine the effect of laser pulse duration on the dynamics of strong-field double ionization. We cover…
Momentum Analysis in Strong-field Double Ionization
Phay J. Ho
We provide a basis for the laser intensity dependence of the momentum distributions of electrons and ions arising from strong-field non-sequential double ionization (NSDI) at inten…
Non-Sequential Double Ionization is a Completely Classical Photoelectric Effect
Phay J. Ho, R. Panfili, S. L. Haan +1
We introduce a unified and simplified theory of atomic double ionization. Our results show that at high laser intensities ( watts/cm) purely classical correlatio…