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Yazawa, Hiroki*; Shioyama, Tadamasa*; Suda, Yoshitaka*; Yamanaka, Mio*; Kannari, Fumihiko*; Itakura, Ryuji; Yamanouchi, Kaoru*
Journal of Chemical Physics, 127(12), p.124312_1 - 124312_5, 2007/09
Times Cited Count:10 Percentile:33.90(Chemistry, Physical)Ethanol molecules were irradiated with a pair of temporally overlapping ultrashort intense laser pulses (10-10 W/cm with different colors of 400 and 800 nm, and the dissociative ionization processes have been investigated. The yield ratio of the C-O bond breaking with respect to the C-C bond breaking was varied in the range of 0.17-0.53 sensitively depending on the delay time between the two laser pulses, and the absolute value of the yield of the C-O bond breaking was found to be increased largely when the Fourier-transform limited 800 nm laser pulse overlaps the stretched 400 nm laser pulse, demonstrating an advantage of the two-color intense laser fields in controlling chemical bond breaking processes.