Effects of laser pulse duration and intensity on Coulomb explosion of CO2: signatures of charge-resonance enhanced ionization

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Title Effects of laser pulse duration and intensity on Coulomb explosion of CO2: signatures of charge-resonance enhanced ionization
Author Litvinyuk, Igor; Bocharova, Irina; Sanderson, Joseph; Kieffer, Jean-Claude; Legare, Francois
Publication Title Journal of Physics: Conference Series
Editor John Tannis
Year Published 2009
Place of publication United Kingdom
Publisher Institute of Physics Publishing Ltd.
Abstract We studied laser-induced Coulomb explosion of CO2 by full triple-coincidence momentum resolved detection of resulting ion fragments. From the coincidence momentum data we can reconstruct molecular geometry immediately before explosion. We observe the dynamics of Coulomb explosion by comparing reconstructed CO2 geometries for different Ti:Sapphire laser pulse durations (at the same intensity) ranging from few cycles (7 fs) to 200 fs. We conclude that for longer pulse durations (≥100 fs) Coulomb explosion proceeds through the enhanced ionization mechanism taking place at the critical O- O distance of 8 a.u., similarly to well known charge-resonance enhanced ionization (CREI) in H2.
Peer Reviewed Yes
Published Yes
ISBN 1742-6596
Conference name ICPEAC 2009
Location Kalamazoo, Michigan, USA
Date From 2009-07-22
Date To 2009-07-28
URI http://hdl.handle.net/10072/32838
Date Accessioned 2010-03-04
Language en_AU
Research Centre Centre for Quantum Dynamics
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Atomic and Molecular Physics
WWW reference https://www.icpeac2009.physics.wmich.edu/
Publication Type Conference Publications (Full Written Paper - Refereed)
Publication Type Code e1x

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