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The University of Manchester
Cascade transition between energy levels has important applications, such as in quantum information protocols and quantum cascade lasers. In two-dimensional heterostructure, the moiré superlattice potential can result in multiple interlayer exciton (IX) energy levels. We demonstrate the cascade transitions between such moiré IXs by performing time- and energy-resolved photoluminescence measurements. We show that the lower-energy moiré IX can be excited to higher-energy ones, facilitating IX population inversion.
Qinghai Tan, Abdullah Rasmita, Zhaowei Zhang, Konstantin ‘kostya’ Novoselov, Weibo Gao (2022). Optical signature of cascade transitions between moiré interlayer excitons. arXiv (Cornell University), DOI: 10.48550/arxiv.2202.10088.
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Type
Preprint
Year
2022
Authors
5
Datasets
0
Total Files
0
Language
English
Journal
arXiv (Cornell University)
DOI
10.48550/arxiv.2202.10088
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