Selective steering of molecular multiple dissociative channels with strong few-cycle laser pulses |
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Authors: | Liu Yunquan Liu Xianrong Deng Yongkai Wu Chengyin Jiang Hongbing Gong Qihuang |
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Institution: | Department of Physics, State Key Laboratory for Mesoscopic Physics, Peking University, Beijing, People's Republic of China. |
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Abstract: | We report that multiple dissociative channels of carbon monoxide (CO) molecules are selectively controlled using intense phase-stabilized few-cycle laser fields (4.2 fs, 740 nm, 6×10(14) W/cm(2)). The controllable emission direction of C(2+) from charge asymmetrical dissociation and ionization of CO dications is out of phase in a linear polarized laser field. The strong coupling between the channels is explained as the competition of recollision excitation and recollision ionization in a recollision process, leading to the opposite asymmetrical property. The experimental result provides insight into high degree controlling molecular multiple dissociative processes in the time scale of electronic motion. |
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