Barre 22-32, 4e étage, salle 407
Naman Agarwal – Department of Physics and Astronomy, Aarhus University, Denmark
Abstract
In this talk, I will discuss how one can use soft X-ray coherent diffractive imaging to obtain quantitative nanoscale spectroscopic information about the transient chemical states and heterogeneity of photoexcited insulator-to-metal phase transition in vanadium oxide.
Further, as a stepping stone toward quantitative 3D hard X-ray Bragg imaging of strain fields, I will discuss recent results obtained from ultrafast hard X-ray Bragg diffraction measurements of phase competition in photoexcited VO2.
