Rydberg Series of Dark Excitons in Cu_{2}O.
Rydberg Series of Dark Excitons in Cu_{2}O.
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Cu_{2}O 中暗激子的里德伯系列。
DOI：
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发表时间：
2020
影响因子：
8.6
通讯作者：
M. Bayer
中科院分区：
文献类型：
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作者：
A. Farenbruch;D. Fröhlich;D. Yakovlev;M. Bayer
我们使用二次谐波生成技术演示了 Cu_{2}O 中黄色激子系列的里德伯系列暗激子（称为副激子），其主量子数高达 n=6。这些状态中的每一个对于所有级数都是光学惰性的，但是通过施加磁场，它们的观察变得可能，该磁场导致与具有相同n的四极允许的明亮激子（称为正激子）混合。暗的副态一般位于亮的原态下方，其能量通过电子-空穴交换相互作用而增加，除了n=2时，此顺序相反。这种反转的发生是由于能带混合，即黄色系列的 2S_{y,o} 正激子与绿色激子系列的 1S_{g,o} 正激子的混合。
We demonstrate the Rydberg series of dark excitons, known as paraexcitons, up to the principal quantum number n=6 for the yellow exciton series in Cu_{2}O, using second harmonic generation. Each of these states is optically inactive to all orders, but their observation becomes possible by application of a magnetic field which leads to mixing with the quadrupole-allowed bright excitons, called orthoexcitons, of the same n. The dark parastates are generally located below the bright orthostates, whose energies are increased by the electron-hole exchange interaction, except for n=2, where this order is reversed. This inversion occurs due to band mixing, namely, of the 2S_{y,o} orthoexciton of the yellow series with the 1S_{g,o} orthoexciton of the green exciton series.
影响因子：
19.6
作者：
Poem, E.;Kodriano, Y.;Gershoni, D.
通讯作者：
Gershoni, D.
影响因子：
64.8
作者：
Kazimierczuk, T.;Froehlich, D.;Bayer, M.
通讯作者：
Bayer, M.