Record Details

Title:
A Comparative Study On Ionization-Induced Dissociation Of Methane Irradiated By 800nm And 400nm Laser Fields
Affiliation(s):
EuXFEL staff, Other
Author group:
Instrument SQS
Topic:
Scientific area:
Abstract:
Irradiation of methane by intense laser fields leads to the production of several molecular ions CHm+n (m = 1,2 with n = 0-4) and atomic fragments such as Hm+n (m = 0,1 with n = 1,2) as a result of dissociation. Previous studies on methane ionization irradiated by pulses of nanosecond duration showed an absence of the parent fragment CH+4 in the time-of-flight spectrum. This was explained as a result of the dissociation into the CH+3 and a hydrogen atom. On the other hand, when the pulse duration was decreased down to 8fs all the fragment ions disappeared except for the CH+4 and CH+3 molecular ions indicating that methane did not have enough time to dissociate after the ionization step. All the aforementioned studies were confined to the fundamental wavelength of 800nm. In the present work, we extend the study to include the second harmonic field at 400nm.
Imprint:
2019
Language(s):
English
Conference information:
13th European Conference on Atoms, Molecules and Photons, Florence, 2019-04-08, 2019-04-12, ECAMP 13


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 Record created 2019-04-24, last modified 2019-04-24

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