We excite atoms and molecules with intense ultrafast pulses and explore and control their decay for novel precision measurements. We develop new X-ray techniques to identify and image chemical elements and their speciation. Powerful X-ray lasers and synchrotrons deliver the atomic resolution X-ray Vision.
Zhang et al, Generation of Intense Phase-Stable Femtosecond Hard X-ray Pulse Pairs, Proc Natl Acad Sci 119, e2119616119 (2022) https://doi.org/10.1073/pnas.2119616119 pdf
Kroll et al, Observation of Seeded Mn Kβ Stimulated X-ray Emission Using Two-color X-ray Free Electron Laser Pulses, Phys. Rev. Lett., 125, 037404 (2020) DOI: 10.1103/PhysRevLett.125.037404 pdf
Halavanau et al, Design and Characteristics of a Population Inversion X-ray Laser Oscillator, Proc Natl Acad Sci, 117 15511 (2020) pdf
Kroll et al, Stimulated X-ray Emission Spectroscopy in Transition Metal Complexes, Phys. Rev. Lett., 120, 133203 (2018) pdf
Alonso-Mori et al, Energy-dispersive X-ray emission spectroscopy using an X-ray free-electron laser in a shot-by-shot mode, Proc Natl Acad Sci, 109, 19103 (2012) pdf