Flannigan Research Group

The Flannigan Group seeks to answer fundamental questions about energy movement and redistribution in atomic and nanoscale systems by developing methods to uncover new physical insights on ultrasmall and ultrafast spatiotemporal scales.

***Contact Dave via email to discuss potential collaborations and use of the UEM instrument at Minnesota.***

We work at the intersection of materials science, physical chemistry, and condensed-matter physics to develop new ways of studying lattice and molecular, electronic, and magnetic dynamics spanning a broad range of space and time.  In this way, we aim to develop a rich, comprehensive picture of energy processes - from the level of atoms and charge carriers up to classically-described nanomechanics.  Central to our methods is the development and application of novel time-resolved techniques, such as ultrafast electron microscopy, in order to gain access to largely unexplored parameter space.  Check out our Research page for current topics of study.

Licensing information for UEMtomaton can be found here.  Licensing information for UEMview can be found here.  Contact Prof. Flannigan for information about the software and installation services.

Influence of Photoemission Geometry on Timing and Efficiency in 4D Ultrafast Electron Microscopy. Willis, S. A.; Flannigan, D. J. ChemPhysChem 2025, 26, e202401032 (Invited, Special collection: Physical Chemistry in North America) (Front cover article)

Delineation of the Impact on Temporal Behaviors of Off-Axis Photoemission in an Ultrafast Electron Microscope. Chen, J.; Willis, S. A.; Flannigan, D. J. Rev. Sci. Instrum. 2024, 95, 093705.

Wehnelt Photoemission in an Ultrafast Electron Microscope: Stability and Usability. Willis, S. A.; Curtis, W. A.; Flannigan, D. J. J. Appl. Phys. 2024, 136, 024901.