The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Topological-insulator-based terahertz modulator
Open accessAbstract
Three dimensional topological insulators, as a new phase of quantum matters, are characterized by an insulating gap in the bulk and a metallic state on the surface. Particularly, most of the topological insulators have narrow band gaps, and hence have promising applications in the area of terahertz optoelectronics. In this work, we experimentally demonstrate an electronically-tunable terahertz intensity modulator based on Bi 1:5 Sb 0:5 Te 1:8 Se 1:2 single crystal, one of the most insulating topological insulators. A relative frequency-independent modulation depth of ~62% over a wide frequency range from 0.3 to 1.4 THz has been achieved at room temperature, by applying a bias current of 100 mA. The modulation in the low current regime can be further enhanced at low temperature. We propose that the extraordinarily large modulation is a consequence of thermally-activated carrier absorption in the semiconducting bulk states. Our work provides a new application of topological insulators for terahertz technology.
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Cites
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Cited by
Terahertz topological photonics for on-chip communication
Yang, Y., Yamagami, Y., Yu, X., Pitchappa, P., Webber, J., Zhang, B., Fujita, M., Nagatsuma, T., & Singh, R. (2020) · Nature Photonics · doi:10.1038/s41566-020-0618-9 · Cited by 842
Plastic biodegradation: frontline microbes and their enzymes
Amobonye, A., Bhagwat, P., Singh, S., & Pillai, S. (2021) · Science of The Total Environment · doi:10.1016/j.scitotenv.2020.143536 · Cited by 738
A Review of Human Exposure to Microplastics and Insights Into Microplastics as Obesogens
Kannan, K., & Vimalkumar, K. (2021) · Frontiers in Endocrinology · doi:10.3389/fendo.2021.724989 · Cited by 607
Gasaly, N., de Vos, P., & Hermoso, M. A. (2021) · Frontiers in Immunology · doi:10.3389/fimmu.2021.658354 · Cited by 578
Xiang, Y., Jiang, L., Zhou, Y., Luo, Z., Zhi, D., Yang, J., & Lam, S. S. (2022) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2021.126843 · Cited by 574
Metadata
- Authors
- Wang, X. B., Cheng, L., Wu, Y., Zhu, D. P., Wang, L., Zhu, J.-X., Yang, H., & Chia, E. E. M.
- Venue
- Scientific Reports
- Published
- 2017-10-18
- Volume
- 7
- Issue
- 1
- Pages
- 13486-13486
- ISSN
- 2045-2322 (ISSN-L)
- OpenAlex
- W2762015638
- Cited by
- 978
- References
- 8
- FWCI
- 56.78
- Type
- journal article
- Language
- en
- Open access
- gold
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- Wang, X. B., Cheng, L., Wu, Y., Zhu, D. P., Wang, L., Zhu, J.-X., Yang, H., & Chia, E. E. M. (2017). Topological-insulator-based terahertz modulator. Scientific Reports. https://doi.org/10.1038/s41598-017-13701-9
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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