Active control of excitonic strong coupling and electroluminescence in electrically driven plasmonic nanocavities
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910984717729792 |
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| author | Zheng, Junsheng Yang, Ruoxue Krasavin, Alexey V. Wang, Zhenxin Feng, Yuanjia Tang, Longhua Li, Linjun Guo, Xin Dai, Daoxin Zayats, Anatoly V. Tong, Limin Wang, Pan |
| author_facet | Zheng, Junsheng Yang, Ruoxue Krasavin, Alexey V. Wang, Zhenxin Feng, Yuanjia Tang, Longhua Li, Linjun Guo, Xin Dai, Daoxin Zayats, Anatoly V. Tong, Limin Wang, Pan |
| contents | Enhancement and active control of light-matter interactions at the atomic scale is important for developing next-generation nanophotonic and quantum optical devices. Here, we demonstrate electric control of both excitonic strong coupling and electroluminescence by integrating semiconductor monolayers into a nanometer gap of electrically driven nanocube-on-mirror plasmonic nanocavities. Particularly, in a strongly-coupled system of nanocavity plasmons and WSe2 excitons, the ultra-strong electric field generated in the nanocavity gap enables a reversible modulation of the Rabi splitting between ~102 and 80 meV with a bias below 2.5 V. In the quantum tunnelling regime, by injecting carriers into a nanocavity-integrated WS2 monolayer, bias-controlled spectrally tunable electroluminescence from charged or neutral excitons is achieved with an external quantum efficiency reaching ~3.5%. These results underline practical approaches to electric control of atomic-scale light-matter interactions for applications including nanoscale light sources, ultrafast electro-optic modulation, quantum information processing and sensing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_14742 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Active control of excitonic strong coupling and electroluminescence in electrically driven plasmonic nanocavities Zheng, Junsheng Yang, Ruoxue Krasavin, Alexey V. Wang, Zhenxin Feng, Yuanjia Tang, Longhua Li, Linjun Guo, Xin Dai, Daoxin Zayats, Anatoly V. Tong, Limin Wang, Pan Optics Enhancement and active control of light-matter interactions at the atomic scale is important for developing next-generation nanophotonic and quantum optical devices. Here, we demonstrate electric control of both excitonic strong coupling and electroluminescence by integrating semiconductor monolayers into a nanometer gap of electrically driven nanocube-on-mirror plasmonic nanocavities. Particularly, in a strongly-coupled system of nanocavity plasmons and WSe2 excitons, the ultra-strong electric field generated in the nanocavity gap enables a reversible modulation of the Rabi splitting between ~102 and 80 meV with a bias below 2.5 V. In the quantum tunnelling regime, by injecting carriers into a nanocavity-integrated WS2 monolayer, bias-controlled spectrally tunable electroluminescence from charged or neutral excitons is achieved with an external quantum efficiency reaching ~3.5%. These results underline practical approaches to electric control of atomic-scale light-matter interactions for applications including nanoscale light sources, ultrafast electro-optic modulation, quantum information processing and sensing. |
| title | Active control of excitonic strong coupling and electroluminescence in electrically driven plasmonic nanocavities |
| topic | Optics |
| url | https://arxiv.org/abs/2409.14742 |