由原子内和原子间电子关联驱动的双中心共振光离激发

S. Kim, S. Steinhäuser, A. B. Voitkiv, C. Müller
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引用次数: 0

摘要

研究了在邻近原子存在的情况下,由单个光子的吸收引起的原子电离激发。后者首先被共振光激发,然后将激发能量无辐射地传递给另一个原子,导致其同时电离。这一过程依赖于原子间和原子内电子关联的综合效应。在适当的条件下,它可以比直接光电离激发甚至直接光电离强几个数量级。此外,我们还简要讨论了另一种带激发的双中心共振光离,其最终态的电离和残余激发位于不同的原子位置。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Two-center resonant photoionization-excitation driven by combined intra- and interatomic electron correlations
Ionization-excitation of an atom induced by the absorption of a single photon in the presence of a neighbouring atom is studied. The latter is, first, resonantly photoexcited and, afterwards, transfers the excitation energy radiationlessly to the other atom, leading to its ionization with simultaneous excitation. The process relies on the combined effects of interatomic and intraatomic electron correlations. Under suitable conditions, it can dominate by several orders of magnitude over direct photoionization-excitation and even over direct photoionization. In addition, we briefly discuss another kind of two-center resonant photoionization with excitation where the ionization and residual excitation in the final state are located at different atomic sites.
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