Controlling strong-field isomerization of acetylene ions

POSTER

Abstract

The topic of hydrogen migration in hydrocarbons has garnered considerable attention in recent years in the strong-field community and beyond. Employing coincidence 3D momentum imaging, we study the intense ultrafast laser-induced isomerization and dissociation dynamics of keV ion beams of acetylene, one of the simplest hydrocarbons. Targets of interest include C$_2$H$_2^-$, C$_2$H$_2^+$, and C$_2$H$_2^{2+}$, for which we focus on two-body acetylene (CH$^{q_1}$+CH$^{q_2}$) and vinylidene (C$^{q_1}$+CH$_2^{q_2}$) breakup. Laser parameters such as intensity, wavelength, pulse duration, etc., that serve as control knobs for manipulating outcomes such as the kinetic energy release (KER), angular distributions, and branching ratios will be discussed. Moreover, the dependence of these outcomes on the initial ion species will be explored.

*Supported by the Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U. S. Department of Energy under Award \#DE-FG02-86ER13491. EW was also supported by the National Science Foundation.

Authors

  • Bethany Jochim

    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506 USA
    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan KS, USA

  • Ben Berry

    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506 USA
    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan KS, USA

  • Travis Severt

    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506 USA
    • J.R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, KS 66506, USA
    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan KS, USA
    • Department of Physics, Kansas State University, Manhattan KS, USA
    • J.R. Macdonald Laboratory, Kansas State University, Manhattan, KS 66506

  • Peyman Feizollah

    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506 USA
    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan KS, USA

  • M. Zohrabi

    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506 USA

  • K. J. Betsch

    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506 USA

  • Kanaka Raju Pandiri

    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506 USA
    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan KS, USA
    • Department of Physics, Kansas State University, Manhattan KS, USA
    • J.R. Macdonald Laboratory, Kansas State University, Manhattan, KS 66506

  • K. D. Carnes

    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506 USA
    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan KS, USA

  • Itzik Ben-Itzhak

    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506 USA
    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan KS, USA
    • Department of Physics, Kansas State University, Manhattan KS, USA
    • J.R. Macdonald Laboratory, Kansas State University, Manhattan, KS 66506

  • E. Wells

    • Department of Physics, Augustana University, Sioux Falls, SD 57197 USA