Strong optical fields induce ultrafast rearrangement of H-atoms in ethanol molecules |
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Authors: | D Mathur F A Rajgara |
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Institution: | (1) Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, 400 005, India;(2) UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai-Kalina Campus, Mumbai, 400 098, India |
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Abstract: | H-atoms in C2H5OH are rearranged by strong optical fields generated by intense, 100 fs long infrared laser pulses to form new bonds that lead to the H 3 + molecular ion. This observation appears to be against the expectation that exposure of molecules to intensities of the order of 1015 W cm?2 inevitably lead to multiple ionization of molecules followed by instantaneous Coulomb explosion into fragments. The polarization dependence of the H 3 + signal and of the energy content of H 3 + ions lead to believe that H-atom rear-rangement in ethanol occurs within a single 100 fs pulse. |
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