Chirp control of the formation of excited neutral D fragments in intense ultrafast laser pulses

ORAL

Abstract

Excited neutral D fragments ($n$$\geq$2) are formed by the interaction of intense laser pulses with D$_2$ molecules [1]. One of the suggested interpretations of this process is that one (or both) of the electrons that were ejected recombine with the parent ion(s) and form the excited neutral fragment(s) [1]. In the present study, 400 nm laser pulses were used, and a single-prism pulse compressor [2] was implemented, which allows the generation of both positively- and negatively-chirped laser pulses. The kinetic energy release spectrum of neutral D fragments is observed to be extremely sensitive to the laser parameters. In particular, we report control of this spectrum using the chirp of the laser pulses. \\ {[1]} T. Nubbemeyer \emph{et al.}, Phys. Rev. Lett \textbf{101}, 233001 (2008). \\ {[2]} Selcuk Akturk \emph{et al.}, Opt. Express \textbf{14}, 10101 (2006).

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Authors

  • 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

  • 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

  • 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

  • M. Zohrabi

    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

  • B. D. Esry

    Kansas State University, 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