Dissociative ionization of ethanol by 400nm femtosecond laser pulses

The dissociative ionization of ethanol in short-pulsed laser fields at ∼400nm is investigated. The yield ratio of the C–O bond breaking with respect to the C–C bond breaking increases sharply as the temporal width increases from 60to400fs, and the yield ratio is two to three times as large as that a...

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Published in:The Journal of chemical physics 2006-11, Vol.125 (18)
Main Authors: Yazawa, H., Shioyama, T., Suda, Y., Kannari, F., Itakura, R., Yamanouchi, K.
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Language:eng ; jpn
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cited_by cdi_FETCH-LOGICAL-c1408-2b58665ec1ba46846cb831e3a6e414cae92d88f8be55ae1153147550f5bd23b83
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container_issue 18
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container_title The Journal of chemical physics
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creator Yazawa, H.
Shioyama, T.
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Kannari, F.
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Yamanouchi, K.
description The dissociative ionization of ethanol in short-pulsed laser fields at ∼400nm is investigated. The yield ratio of the C–O bond breaking with respect to the C–C bond breaking increases sharply as the temporal width increases from 60to400fs, and the yield ratio is two to three times as large as that at 800nm in the entire pulse-width range of 60–580fs. The enhancement of the C–O bond breaking of singly charged ethanol at 400nm and the bond elongation prior to the Coulomb explosion of doubly charged ethanol occurring in the relatively weak light field intensity of 1012–1013W∕cm2 is interpreted by the efficient light-induced coupling among the electronic states at the shorter wavelength of 400nm. From the double pulse experiment, in which ethanol is irradiated with a pair of short pulses (
doi_str_mv 10.1063/1.2387177
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title Dissociative ionization of ethanol by 400nm femtosecond laser pulses
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