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CO MULTIPHOTON DISSOCIATIVE IONIZATION THROUGH B$^1\Sigma^+$ STATE

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/30361

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Title: CO MULTIPHOTON DISSOCIATIVE IONIZATION THROUGH B$^1\Sigma^+$ STATE
Creators: Li, Wen; Lahankar, Sridhar A.; Suits, Arthur G.
Issue Date: 2005
Abstract: \begin{wrapfigure}[10]{r}{6.5cm} \vspace{-.5cm} \hspace*{-0cm} \epsfig{file=C+O+KES.eps} \end{wrapfigure} High resolution kinetic energy spectra of O+ and C+ are obtained for the first time from CO multiphoton dissociative ionization. DC slice and megapixel imaging techniques were used to acquire high quality images. The intermediate CO B$^1\Sigma^+$ state was reached using resonant two-photon excitation (around 230nm). At least 5 photons were found to contribute to the production of carbon and oxygen cations. All peaks were assigned by comparing the images at different excitation wavelengths tuned to different rotation lines of B$^1\Sigma^+$ state. Angular and kinetic energy distributions were used to identify distinct pathways involving photodissociation of CO+ produced by direct ionization or autoionization, and ionizing excited neutral fragments.
URI: http://hdl.handle.net/1811/30361
Other Identifiers: 2005-MI-11
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