Energetic H$_2^+$ ions are formed as a result of intra-molecular rearrangement during fragmentation of linear alcohols (methanol, ethanol, propanol, hexanol, and dodecanol) induced by intense optical fields produced by 100 fs long, infrared, laser pulses of peak intensity 8$\times10^{15}$ W cm$^{-2}$. Polarization dependent measurements show, counterintuitively, that rearrangement is induced by the strong optical field within a single laser pulse, and that it occurs before Coulomb explosion of the field-ionized multiply charged alcohols.
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机译：高能H $ _2 ^ + $离子的形成是线性直链醇（甲醇，乙醇，丙醇，己醇和十二烷醇）在100 fs长的红外激光脉冲产生的碎裂过程中发生分子内重排的结果。峰值强度8 $ \ times10 ^ {15} $ W cm $ ^ {-2} $。与偏振有关的测量结果与直觉相反，表明重排是由单个激光脉冲内的强光场引起的，并且重排发生在场电离的多电荷醇的库仑爆炸之前。
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