- Neural dynamics and brain function
- Spectroscopy and Quantum Chemical Studies
- Advanced Electron Microscopy Techniques and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Functional Brain Connectivity Studies
- Laser-Matter Interactions and Applications
- Advanced X-ray Imaging Techniques
- Advanced Chemical Physics Studies
- Visual perception and processing mechanisms
University of Wisconsin–Madison
2023
Stanford University
2022
We present the X-FAST (XUV Femtosecond Absorption Spectroscopy Tabletop) instrument at University of Wisconsin-Madison. The produces femtosecond extreme ultraviolet photon pulses via high-harmonic generation in range 40-72 eV, as well optical pump for transient-absorption experiments. system implements a gas-cooled sample cell that enables studying dynamics thermally sensitive thin-film samples. This paper provides potential users with specifications optical, vacuum, data acquisition, and...
X-ray free-electron lasers (XFELs) deliver intense x-ray pulses that destroy the sample in a single shot by Coulomb explosion. Experiments using XFEL pulse trains or new generation of high-repetition rate XFELs require rapid replacement beyond those provided systems now used at low repletion-rate XFELs. We describe development and characterization system based on spinning disk to continuously solid into an interaction point very high speeds. tested our Linac Coherent Light Source European...
ABSTRACT A repeated measure of neural activity that is stable over time when unperturbed needed to be able meaningfully neuroplastic changes in the brain. With sensory-evoked potentials particular, presentation stimuli can generate neuroplasticity by itself under certain conditions. We assessed repeated-measure within-day and across-day stability steady-state visual-evoked potential (ssVEP), a high signal-to-noise electrophysiological readout human visual cortex, preparation for studies...