Probing Ultrafast Nuclear Dynamics in Halomethanes by Time-Resolved Electron and Ion Imaging

POSTER

Abstract

Femtosecond pump-probe experiments provide opportunities to investigate photochemical reaction dynamics and the resulting changes in molecular structure in detail. Here, we present a study of the UV-induced photodissociation of gas-phase halomethane molecules (CH$_{\mathrm{3}}$I, CH$_{\mathrm{2}}$IBr, \textellipsis ) in a pump-probe arrangement using two complementary probe schemes, either using a femtosecond near-infrared laser or the FLASH free-electron laser. We measured electrons and ions produced during the interaction using a double-sided velocity map imaging spectrometer equipped with a CCD camera for electron detection and with the Pixel Imaging Mass Spectrometry (PImMS) camera for ions, which can record the arrival time for up to four ions per pixel.

Authors

  • F. Ziaee

    J.R. Macdonald Laboratory, Kansas State University, J.R. Macdonald Laboratory, Kansas State University, Manhatan, KS 66506, J.R.Macdonald Laboratory, Kansas State University

  • A. Rudenko

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

  • D. Rolles

    J.R. Macdonald Laboratory, Department of Physics, Kansas State Univerisity, KS, J. R. Macdonald Laboratory, Physics. Dept, Kansas State University, Kansas State University, J.R. Macdonald Laboratory, Kansas State University, J.R.Macdonald Laboratory, Kansas State University

  • E. Savelyev

    Deutsches Elektronen-Synchrotron (DESY), DESY, Hamburg, DESY, Hamburg, Germany

  • C. Bomme

    Deutsches Elektronen-Synchrotron (DESY), DESY, Hamburg, DESY, Hamburg, Germany

  • R. Boll

    DESY, Hamburg, DESY, Hamburg, Germany

  • B. Manschwetus

    DESY, Hamburg, Germany

  • B. Erk

    DESY, Hamburg, DESY, Hamburg, Germany

  • S. Trippel

    DESY, Hamburg, Germany

  • J. Wiese

    DESY, Hamburg, Germany

  • J. Kuepper

    DESY, Hamburg, Germany

  • K. Amini

    University of Oxford, UK

  • J. Lee

    University of Oxford, UK

  • M. Brouard

    University of Oxford, UK

  • F. Brausse

    Max-Born-Institut, Berlin, Germany

  • A. Rouzee

    Max-Born-Institut, Berlin, Germany

  • P. Olshin

    St. Petersburg State University, Russia

  • A. Mereshchenko

    St. Petersburg State University, Russia

  • J. Lahl

    Lund University, Sweden

  • P. Johnsson

    Lund University, Sweden

  • M. Simon

    UPMC, Paris, LCPMR, UPMC/CNRS, Paris, France

  • T. Marchenko

    UPMC, Paris, LCPMR, UPMC/CNRS, Paris, France

  • D. Holland

    Daresbury Laboratory, UK

  • J. Underwood

    University College London, UK