|標題:||Experimental and theoretical investigation of high-power laser ionization and dissociation of methane|
Chin, S. L.
Mebel, A. M.
Chao, S. D.
Lin, S. H.
Department of Applied Chemistry
|摘要:||The main purpose of this paper is to report the high-power laser ionization-dissociation of CH4 at various femtosecond (fs) laser intensities (from 1 x 10 14 W/cm(2) to 2 x 1015 W/cm(2)) with a laser pulse duration of 48 fs. The generalized molecular Keldysh theory has been applied to calculate the ionization yields for CH4+ and CH4++. Outside the influence of the A intense laser, we propose to calculate the mass spectra due to the decomposition of CH4+ and CH4++, using the Rice-Ramsperger-Kassel-Marcus (RRKM) theory. The agreement between the experimental mass spectra and calculated mass spectra seems to be reasonable.|
|期刊:||JOURNAL OF PHYSICAL CHEMISTRY A|
|Appears in Collections:||Articles|
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