Ultrafast Investigation of the Strong Coupling System between Square Ag Nanohole Array and Monolayer WS<sub>2</sub>
Recent advancements in the study of light-matter interactions between optical cavities and two-dimensional materials have underscored the significance of strong coupling phenomena, facilitating innovative developments in optical devices and quantum information processing. In this study, we explored the interaction between Bloch-surface plasmon polaritons from a square Ag nanohole array and A exciton of monolayer WS<sub>2</sub>, demonstrating a significant Rabi splitting of 74 meV via angle-resolved transient absorption spectroscopy. By analyzing the damping process of the upper and lower branches, we observe that the lower branch decays significantly faster than the upper branch. These findings not only enhance our understanding of exciton-polariton but also point to potential applications in Bose-Einstein condensation, nanophotonics, and quantum information.
Authors
- Jiamin Xiao
- Wenxin Wang (ORCID: https://orcid.org/0000-0001-8191-3976)
- Guangjun Zhang (ORCID: https://orcid.org/0000-0002-3102-3577)
- Zixuan Song (ORCID: https://orcid.org/0000-0003-1089-9251)
- Jinyu Yang (ORCID: https://orcid.org/0009-0009-0299-3214)
- Lingyao Li (ORCID: https://orcid.org/0000-0001-6905-2149)
- Leyi Zhao
Institutions
- Hong Kong Polytechnic University (HK)
- Harbin Engineering University (CN)
Publication Details
- Journal
- Nano Letters
- Published
- 2025-02-18
- DOI
- https://doi.org/10.1021/acs.nanolett.4c05053
- Citations
- 6
- Primary Topic
- Strong Light-Matter Interactions
- Type
- article
- Field-Weighted Citation Impact
- 7.48
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Heilongjiang Province