Single- and multi-photon induced Coulomb explosion of carbon ring molecules

ORAL

Abstract

We present the results of experiments conducted on several carbon ring molecules when subject to ultrafast ionizing radiation fields. By employing either pulses of a strong-field near-infrared laser or an electron-synchrotron generated X-ray beam, we excite these molecules to a highly charged cationic state which will dissociate into several neutral or charged ionic fragments. By employing coincident ion momentum imaging techniques, we can measure the relative yields, angular distributions, and kinetic energies of these photoproducts. We show evidence that these charged carbon rings predominantly fragment sequentially, where the later fragmentation step(s) occur on a timescale longer than the rotational period of the molecule.

*This project is supported by the Chemical Science, Geosciences, and Bio-Science division, Office of Basic Energy Science, Office of Science, U.S. Department of Energy under grant # DE-SC0020276 (Kansas) and DE-SC0012376 (UConn).

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Authors

  • Kurtis Borne

    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University
    • Kansas State University

  • Shashank Pathak

    • Kansas State University

  • Anbu Venkatachalam

    • Kansas State Univ
    • Kansas State University

  • Debadarshini Mishra

    • University of Connecticut

  • Ileana Dumitriu

    • Hobart and William Smith Colleges

  • Renee C. Bilodeau

    • University of Connecticut
    • Department of Physics, University of Connecticut and Advanced Light Source, Berkeley
    • Advanced Light Source, Lawrence Berkeley National Laboratory

  • Surjendu Bhattacharyya

    • Kansas State University
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University

  • Nathan Marshall

    • Kansas State University

  • Farzaneh Ziaee

    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University
    • Kansas State University

  • Keyu Chen

    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University
    • Kansas State University

  • Nora Berrah

    • University of Connecticut
    • Department of Physics, University of Connecticut
    • Univ of Connecticut - Storrs

  • Artem Rudenko

    • Kansas State University
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University

  • Daniel Rolles

    • Kansas State University
    • J.R. Macdonald Lab, Kansas State University
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University