Electrically controllable terahertz square-loop metamaterial based on VO₂ thin film
- PMID:27039711
- DOI: 10.1088/0957-4484/27/19/195202
Electrically controllable terahertz square-loop metamaterial based on VO₂ thin film
Abstract
An electrically controllable square-loop metamaterial based on vanadium dioxide (VO2) thin film was proposed in the terahertz frequency regime. The square-loop shaped metamaterial was adopted to perform roles not only as a resonator but also as a micro-heater for the electrical control of the VO2. A dual-resonant square-loop structure was designed to realize band-pass characteristics in the desired frequency band. The measured Q-factors of the basic and scaled-down metamaterials fabricated on VO2 thin films were 2.22 and 1.61 at the center frequencies of 0.44 and 1.14 THz in the passbands, respectively. The transmittances of the proposed metamaterial were successfully controlled by applying a bias voltage without an external heater. The measured transmittance on-off ratios of the metamaterials were over 40 at the center frequencies in the passbands. In the future, electrically controllable terahertz metamaterial based on VO2 metamaterial could be employed as high-performance active filters or sensors.
Similar articles
- Dynamic Manipulation of THz Waves Enabled by Phase-Transition VO2 Thin Film.Lu C, Lu Q, Gao M, Lin Y.Lu C, et al.Nanomaterials (Basel). 2021 Jan 6;11(1):114. doi: 10.3390/nano11010114.Nanomaterials (Basel). 2021.PMID:33419046Free PMC article.Review.
- Photoinduced active terahertz metamaterials with nanostructured vanadium dioxide film deposited by sol-gel method.Zhang Y, Qiao S, Sun L, Shi QW, Huang W, Li L, Yang Z.Zhang Y, et al.Opt Express. 2014 May 5;22(9):11070-8. doi: 10.1364/OE.22.011070.Opt Express. 2014.PMID:24921805
- Electrically controllable THz asymmetric split-loop resonator with an outer square loop based on VO2.Park DJ, Shin JH, Park KH, Ryu HC.Park DJ, et al.Opt Express. 2018 Jun 25;26(13):17397-17406. doi: 10.1364/OE.26.017397.Opt Express. 2018.PMID:30119551
- Electrical control of terahertz nano antennas on VO2 thin film.Jeong YG, Bernien H, Kyoung JS, Park HR, Kim HS, Choi JW, Kim BJ, Kim HT, Ahn KJ, Kim DS.Jeong YG, et al.Opt Express. 2011 Oct 24;19(22):21211-5. doi: 10.1364/OE.19.021211.Opt Express. 2011.PMID:22108973
- [Research progress in the application of biosensors by using metamaterial in terahertz wave].Yan X, Zhang XF, Liang LJ, Yao JQ.Yan X, et al.Guang Pu Xue Yu Guang Pu Fen Xi. 2014 Sep;34(9):2365-71.Guang Pu Xue Yu Guang Pu Fen Xi. 2014.PMID:25532327Review.Chinese.
Cited by
- Dynamic Manipulation of THz Waves Enabled by Phase-Transition VO2 Thin Film.Lu C, Lu Q, Gao M, Lin Y.Lu C, et al.Nanomaterials (Basel). 2021 Jan 6;11(1):114. doi: 10.3390/nano11010114.Nanomaterials (Basel). 2021.PMID:33419046Free PMC article.Review.
- Ultrafast reprogrammable multifunctional vanadium-dioxide-assisted metasurface for dynamic THz wavefront engineering.Shabanpour J, Beyraghi S, Cheldavi A.Shabanpour J, et al.Sci Rep. 2020 Jun 2;10(1):8950. doi: 10.1038/s41598-020-65533-9.Sci Rep. 2020.PMID:32488027Free PMC article.
- Switchable multifunctional terahertz metasurfaces employing vanadium dioxide.Li X, Tang S, Ding F, Zhong S, Yang Y, Jiang T, Zhou J.Li X, et al.Sci Rep. 2019 Apr 1;9(1):5454. doi: 10.1038/s41598-019-41915-6.Sci Rep. 2019.PMID:30931982Free PMC article.
- Microwave Tunable Metamaterial Based on Semiconductor-to-Metal Phase Transition.Zhang G, Ma H, Lan C, Gao R, Zhou J.Zhang G, et al.Sci Rep. 2017 Jul 18;7(1):5773. doi: 10.1038/s41598-017-06230-y.Sci Rep. 2017.PMID:28720879Free PMC article.
Publication types
LinkOut - more resources
Full Text Sources
Other Literature Sources