Imaging electronic motions in atoms by energy-resolved ultrafast electron diffraction

Authors

Hua-Chieh Shao, University of Nebraska-LincolnFollow
Anthony F. Starace, University of Nebraska-LincolnFollow

Document Type

Article

Date of this Version

9-11-2014

Citation

PHYSICAL REVIEW A 90, 032710 (2014); DOI: 10.1103/PhysRevA.90.032710

Comments

Copyright © 2014 American Physical Society. Used by permission.

Abstract

We propose energy-resolved ultrafast electron diffraction as a means of directly imaging target electronic motions whose space, time, and energy information can be simultaneously retrieved from time-resolved diffraction measurements. The energy-resolved diffraction images are simulated for breathing, wiggling, and hybrid modes of electronic motion in the H atom. The simulations demonstrate the capabilities of ultrafast electron diffraction to image and distinguish different kinds of electronic motion. The theoretical analysis of the scattering process identifies the requirements for time- and state-resolved imaging of electronic motion and provides interpretations of the results.