Zhang, X.; Wang, G.; Liu, J.; Zuo, S.; Li, M.; Yang, S.; Jia, Y.; Gao, Y. Switchable and Tunable Terahertz Metamaterial Based on Vanadium Dioxide and Photosensitive Silicon. Nanomaterials2023, 13, 2144.
Zhang, X.; Wang, G.; Liu, J.; Zuo, S.; Li, M.; Yang, S.; Jia, Y.; Gao, Y. Switchable and Tunable Terahertz Metamaterial Based on Vanadium Dioxide and Photosensitive Silicon. Nanomaterials 2023, 13, 2144.
Zhang, X.; Wang, G.; Liu, J.; Zuo, S.; Li, M.; Yang, S.; Jia, Y.; Gao, Y. Switchable and Tunable Terahertz Metamaterial Based on Vanadium Dioxide and Photosensitive Silicon. Nanomaterials2023, 13, 2144.
Zhang, X.; Wang, G.; Liu, J.; Zuo, S.; Li, M.; Yang, S.; Jia, Y.; Gao, Y. Switchable and Tunable Terahertz Metamaterial Based on Vanadium Dioxide and Photosensitive Silicon. Nanomaterials 2023, 13, 2144.
Abstract
A switchable and tunable terahertz (THz) metamaterial based on photosensitive silicon and Vanadium dioxide (VO2) was proposed. By using finite-difference time-domain (FDTD) method, the transmission and reflective properties of the metamaterial were investigated theoretically. The results imply that, the metamaterial can realize a dual electromagnetically induced transparency (EIT) or two narrow-band absorption depending on the temperature of the VO2. Additionally, the magnitude of the EIT and two narrow-band absorption can be tuned by varying the conductivity of photosensitive silicon (PSi) via pumping light. Correspondingly, the slow light effect accompanying the EIT can also be adjusted.
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