Controlling the dissociative ionization of ethanol with 800 and 400 nm two-color femtosecond laser pulses
- Department of Electronics and Electrical Engineering, Faculty of Science and Technologies, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522 (Japan)
Ethanol molecules were irradiated with a pair of temporally overlapping ultrashort intense laser pulses (10{sup 13}-10{sup 14} W/cm{sup 2}) 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.
- OSTI ID:
- 21024218
- Journal Information:
- Journal of Chemical Physics, Vol. 127, Issue 12; Other Information: DOI: 10.1063/1.2780156; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
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