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arXiv 0912.0188physics.atm-clusphysics.optics
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非晶氙-氩团簇的激子-杂质发光

Exciton-impurity luminescence from noncrystalline xenon-argon clusters

O. G. Danylchenko, Yu. S. Doronin, S. I. Kovalenko, M. Yu. Libin, V. N. Samovarov, V. L. Vakula

摘要:

本文首次在含氩杂质的氙-氩系统中观察到了固体稀有气体二元混合物中的激子-杂质发光。在具有多层二十面体结构的二元团簇中记录到一个激子杂质发射带。光学跃迁发生在一个能级躺在非常接近的最低水平的体氙样品中的体积激子。结果表明,在非晶凝聚介质中探测激子能级的可能性。

英文摘要:

For the first time in binary mixtures of solid rare gases exciton-impurity luminescence is observed from a xenon-argon system containing argon as impurity. An exciton-impurity emission band is registered for binary clusters with the structure of multilayer icosahedron. The optical transition occurs from an energy level lying very close to the lowest level of volume excitons in bulk xenon samples. The results demonstrate the possibility of probing excitonic levels in noncrystalline condensed media.

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