Ellipticity controlled dissociative double ionization of ethane by strong fields

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 CH 3 + formation and H + formation channels show a clear competition, produci...

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Published in:Physical chemistry chemical physics : PCCP 2021-10, Vol.23 (41), p.23537-23543
Main Authors: Basnayake, Gihan, Hoerner, Paul, Mignolet, Benoit, Lee, Mi Kyung, Lin, Yun Fei, Winney, Alexander H, Debrah, Duke A, Popaj, Leon, Shi, Xuetao, Lee, Suk Kyoung, Schlegel, H. Bernhard, Remacle, Francoise, Li, Wen
Format: Article
Language:English
Subjects:
attochemistry
Channels
Chemistry
Chimie
Ellipticity
Ethane
Ionization
photoionizaion
Physical, chemical, mathematical & earth Sciences
Physique, chimie, mathématiques & sciences de la terre
ultrafats dynamics
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Summary: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 CH 3 + 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. The ellipticity of a laser can control the dissociation pathways of ethane dications produced by strong fields.
ISSN:1463-9076
1463-9084
1463-9084
DOI:10.1039/d1cp03585a