4 papers
Reconstruction of missing low-angle scattering in two-dimensional diffraction signal
Yanwei Xiong, Martin Centurion
Anisotropic two-dimensional diffraction signals encode additional structural information, including atom-pair angular distributions, beyond conventional isotropic scattering. Howev…
Retrieval of missing small-angle scattering data in gas-phase diffraction experiments
Yanwei Xiong, Nikhil Kumar Pachisia, Martin Centurion
We report an iterative algorithm to retrieve accurate real space information from gas phase ultrafast diffraction measurements with missing data at low momentum transfer. The algor…
Ultrafast electron diffractive imaging of the dissociation of pre-excited molecules
Yanwei Xiong, Haoran Zhao, Sri Bhavya Muvva +4
Gas phase ultrafast electron diffraction (GUED) has become a powerful technique to directly observe the structural dynamics of photoexcited molecules. GUED reveals information abou…
Ultrafast dynamics of ferroelectric polarization of NbOI captured with femtosecond electron diffraction
Yibo Wang, Md Sazzad Hossain, Tianlin Li +8
Two-dimensional (2D) ferroelectric materials like NbOI have garnered significant interest, yet their temporal response and synergetic interaction with light remain underexplo…