Title: “Science at the Timescale of the Electron: Coherent X-rays Beams from Tabletop Lasers and Applications in Materials and Molecular Science ”
Abstract: Bright coherent high harmonic beams can now be generated from tabletop lasers, at photon energies that span from the ultraviolet to >1.6 keV (<7.8 Å). This corresponds to efficiently combining together > 5000 laser photons. In the future, it may even be possible to realize a coherent ultrafast version of the Roentgen X-ray tube in a tabletop-scale apparatus. Applications of high harmonic beams in materials and molecular science will also be discussed, including uncovering how magnetic materials behave on timescales less than the characteristic exchange interaction time, nanoscale imaging, capturing the coupled motions of electrons and atoms in molecules, and following energy flow in nanostructures.
Brad Hansen is an Associate Professor in Physics & Astronomy at UCLA since 2001, with prior positions at the University of Toronto and Princeton University PHD from California Institute of Technology in 1996. Hansen is a native of South Africa. Has, on separate occasions, been charged by both a moose and a rhinoceros, and consequently is convinced that the animal kingdom has a secret vendetta against him.
"I am interested in the death of stars and the birth of planets. In this talk, I will describe why we think black holes exist, what they are, and how they affect their environment."
The Art | Sci center is hosting an open salon series for students, faculty, alumni, and all members of the academic community across disciplines every other Friday. This brown-bag lunch series is part of the center's mission to promote cross-pollination between the arts and sciences and to engage as diverse an audience as possible. Previous experience between art and science is not required. LUNCH WILL BE PROVIDED! Please email water@arts.ucla.edu to sign up.
