Influence of multi-exciton correlations on nonlinear polariton dynamics in semiconductor microcavities
Influence of multi-exciton correlations on nonlinear polariton dynamics in semiconductor microcavities
复制标题
多激子相关性对半导体微腔非线性极化子动力学的影响
DOI：
10.1088/1367-2630/15/2/025005
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发表时间：
2013
影响因子：
3.3
通讯作者：
K. Nelson
中科院分区：
文献类型：
--
作者：
Patrick Y. Wen;G. Christmann;J. Baumberg;K. Nelson
利用二维光谱，我们解决了多极化激元相干量子威尔斯嵌入半导体微腔和阐明如何多激子相关介导极化激元非线性动力学。我们发现，极化激元的相关强度取决于光谱重叠的双激子共振，最多至少有四个极化激元可以相关的，一个高阶的相关性比观察到的裸量子威尔斯的激子之间的日期。高阶相关可以归因于通过腔模的耦合，尽管不能排除高阶库仑相关的作用。
Using two-dimensional spectroscopy, we resolve multi-polariton coherences in quantum wells embedded inside a semiconductor microcavity and elucidate how multi-exciton correlations mediate polariton nonlinear dynamics. We find that polariton correlation strengths depend on spectral overlap with the biexciton resonance and that up to at least four polaritons can be correlated, a higher-order correlation than observed to date among excitons in bare quantum wells. The high-order correlations can be attributed to coupling through the cavity mode, although the role of high-order Coulomb correlations cannot be excluded.