Observation of Coherent Breathing Modes Coupled with Photoexcited Carriers in WSe2/WS2 Heterobilayers
We investigate the interactions between breathing phonons and photoexcited carriers using ultrafast pump-probe spectroscopy. We found tunable breathing periods and amplitude through pump fluence and gate-voltage control, driven by Coulomb-coupled electron-hole interactions.
Authors
- Zhipei Sun (ORCID: https://orcid.org/0000-0002-9771-5293)
- Takashi Taniguchi (ORCID: https://orcid.org/0000-0003-0017-7669)
- Faisal Ahmed (ORCID: https://orcid.org/0000-0002-7483-0264)
- J.S. Kim (ORCID: https://orcid.org/0009-0003-9517-2824)
- Hyunyong Choi (ORCID: https://orcid.org/0000-0003-3295-1049)
- Jeonghyeon Suh (ORCID: https://orcid.org/0000-0001-8377-7402)
- Kenji Watanabe (ORCID: https://orcid.org/0000-0001-6249-8666)
- Hongki Min (ORCID: https://orcid.org/0000-0001-5043-2432)
Publication Details
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1364/cleo_fs.2025.ff135_6
- Primary Topic
- 2D Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00