141 citations · 357 across the 6 of their papers we have counts for
6 papers
Electronically Driven Fragmentation of Silver Nanocrystals Revealed by Ultrafast Electron Crystallography
Ramani K. Raman, Ryan A. Murdick, Richard J. Worhatch +4
We report an ultrafast electron diffraction study of silver nanocrystals under surface plasmon resonance excitation, leading to a concerted fragmentation. By examining simultaneous…
Ultrafast imaging of photoelectron packets generated from graphite surface
Ramani K. Raman, Zhensheng Tao, Tzong-Ru Han +1
We present an electron projection imaging method to study the ultrafast evolution of photoelectron density distribution and transient fields near the surface. The dynamical profile…
The development and applications of ultrafast electron nanocrystallography
Chong-Yu Ruan, Yoshie Murooka, Ramani K. Raman +3
We review the development of ultrafast electron nanocrystallography as a method for investigating structural dynamics for nanoscale materials and interfaces. Its sensitivity and re…
Direct observation of optically induced transient structures in graphite using ultrafast electron crystallography
Ramani K. Raman, Yoshie Murooka, Chong-Yu Ruan +3
We use ultrafast electron crystallography to study structural changes induced in graphite by a femtosecond laser pulse. At moderate fluences of ~< 21mJ/cm^2, lattice vibrations are…
Photovoltage Dynamics of the Hydroxylated Si(111) Surface Investigated by Ultrafast Electron Diffraction
Ryan A. Murdick, Ramani K. Raman, Yoshie Murooka +1
We present a novel method to measure transient photovoltage at nanointerfaces using ultrafast electron diffraction. In particular, we report our results on the photoinduced electro…
Dynamics of Size-Selected Gold Nanoparticles Studied by Ultrafast Electron Nanocrystallography
Chong-Yu Ruan, Yoshie Murooka, Ramani K. Raman +1
We report the studies of ultrafast electron nanocrystallography on size-selected Au nanoparticles (2-20 nm) supported on a molecular interface. Reversible surface melting, melting,…