期刊
PHYSICAL REVIEW LETTERS
卷 125, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.125.067403
关键词
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资金
- NSF [1415398]
- JILA Physics Frontier center (NSF) [1125844]
- French RENATECH network
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1415398] Funding Source: National Science Foundation
Multidimensional coherent spectroscopy directly unravels multiply excited states that overlap in a linear spectrum. We report multidimensional coherent optical photocurrent spectroscopy in a semiconductor polariton diode and explore the excitation ladder of cavity polaritons. We measure doubly and triply avoided crossings for pairs and triplets of exciton polaritons, demonstrating the strong coupling between light and dressed doublet and triplet semiconductor excitations. These results demonstrate that multiply excited excitonic states strongly coupled to a microcavity can be described as two coupled quantum-anharmonic ladders.
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