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Updated: Oct 17, 2025

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
Published on: August 6, 2018
Ellipticity controlled dissociative double ionization of ethane by strong fields
Gihan Basnayake1, Paul Hoerner1, Benoit Mignolet2
1Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA. wli@chem.wayne.edu.
Abstract:
The yields of all dissociation channels of ethane dications produced by strong field double ionization were measured. It was found that the branching ratios can be controlled by varying the ellipticity of laser pulses. The CH3+ formation and H+ formation channels show a clear competition, producing the highest and lowest branching ratios at ellipticity of ∼0.6, respectively. With the help of theoretical calculations, such a control was attributed to the ellipticity dependent yields of different sequential ionization pathways.
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