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首页> 外文期刊>Journal of Nuclear Physics, Material Sciences, Radiation and Applications >Formic Acid Ionization and Fragmentation by Multiphoton Absorption
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Formic Acid Ionization and Fragmentation by Multiphoton Absorption

机译:多光子吸收的甲酸电离和碎片

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Multiphoton absorption is an intensity dependent nonlinear effect related to the excitation of virtual intermediate states. In the present work, multiphoton ionization and dissociation of the formic acid molecule (HCOOH) by the interaction with photons from 532 Nd: YAG laser at different intensities are discussed, using different carrier gases. The induced fragmentation-ionization patterns show up to 17 fragments and dissociation channels are proposed. Some evidence of small clusters formation and conformational memory from the ratio of the detected products, CO~(+) and CO_(2)~(+)_(,) on the light of the available results, it is possible to conclude that they arise from trans and cis formic acid. Our results are compared with those obtained in other laboratories under different experimental conditions, some of them show only partial agreement and differences are discussed. Following the Keldysh description it is possible, from our experimental parameters, characterize our results, in the multiphoton absorption regime.
机译:多光子吸收是与虚拟中间状态激发有关的强度依赖性非线性效果。在本作的工作中,通过与来自532 Nd:YAG激光的光子相互作用的甲酸分子(HCOOH)的多选孔电离和甲酸分子(HCOOH)的解离,使用不同的载气。诱导的碎片离子化图案显示出最多17个片段和解离通道。从检测到的产品,CO〜(+)和CO_(2)〜(+)_()的比例中形成和构象内存的一些证据,根据可用的结果,可以得出结论由反式和顺式甲酸产生。我们的结果与在不同实验条件下的其他实验室中获得的结果进行了比较,其中一些人仅展示了部分协议和差异。在keldysh描述之后,从我们的实验参数中可以在多光音吸收制度中表征我们的结果。

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