Electron-Ion Differential Cross Section extracting from the High-order Above-Threshold Ionization spectroscopy of C2H4 and C2H6
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We measured the angle-resolved High-order Above-Threshold Ionization spectroscopy of C2H4 and C2H6 with near-IR laser pulse, and extracted the electron-ion differential cross sections of those molecules from the electron spectroscopy by applying the quantitative rescattering theory. The differential cross sections show dramatically different distributions for C2H4 and C2H6, and this difference is believed to arouse from their different HOMO symmetry.