Electronic Population Transfer via Impulsive Stimulated X-ray Raman Scattering

ORAL

Abstract

Impulsive stimulated X-ray Raman scattering (impulsive SXRS) has been proposed as a technique to prepare an electronic wavepacket in a molecular system. However, to leverage this method, impulsive SXRS must be experimentally established. To this end, we performed an experiment at the Linac Coherent Light Source (LCLS) in NO pumped by broad bandwidth (\textasciitilde 6 eV) attosecond X-ray pulses generated via the Enhanced SASE technique. Excited state neutral molecules were probed with a 266 nm UV laser pulse. Using a time-of-flight ion spectrometer we found increased NO$+$ production of \textasciitilde 5{\%} with a delayed probe laser relative to the inverse arrangement. This signal increases with pulse energy and only appears near the 1s-\textgreater $\pi $* resonance.

*This work was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division. Use of the Linac Coherent Light Source (LCLS), SLAC National Accelerator Laboratory, is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE-AC02-76SF00515.

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Authors

  • Jordan O'Neal

    • Department of Physics at Stanford University, PULSE Institute
    • Department of Physics, Stanford University; Stanford PULSE Institute, SLAC National Accelerator Laboratory

  • Razib Obaid

    • UConn
    • Department of Physics, University of Connecuit

  • Elio Champenois

    • Stanford PULSE Institute, SLAC National Accelerator Laboratory

  • Christoph Bostedt

    • Paul Scherrer Institute
    • Paul Scherrer Institut
    • Argonne National Lab

  • James P. Cryan

    • PULSE Institute, Linac Coherent Light Source, SLAC National Accelerator Laboratory
    • Stanford PULSE Institute, SLAC National Accelerator Laboratory; Linac Coherent Light Source, SLAC National Accelerator Laboratory
    • Stanford PULSE Institute, SLAC National Accelerator Laboratory