| Autor: |
Koichiro Tanaka, Takashi Taniguchi, Satoshi Kusaba, Kenji Watanabe, Kazuhiro Yanagi, Nobuko Naka, Yoshiki Katagiri |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). |
| DOI: |
10.1109/irmmw-thz46771.2020.9370649 |
| Popis: |
Optical sum-frequency generation spectroscopy reveals a clear dipole-inactive $2p$ exciton peak in hBN-encapsulated monolayer WSe 2 under excitation with broadband picosecond near infrared laser pulses $(\hslash\omega=0.56\sim 1.3\text{eV})$ . The splitting energy between $2s$ and $2p$ states is determined as 8. 8 ± 0.1 meV. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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