Residential College | false |
Status | 已發表Published |
Multifunctional Hybrid Metasurfaces for Dynamic Tuning of Terahertz Waves | |
Cai H.2; Chen S.1; Zou C.1; Huang Q.2; Liu Y.1; Hu X.2; Fu Z.1; Zhao Y.2; He H.1; Lu Y.2 | |
2018-07-18 | |
Source Publication | Advanced Optical Materials |
ISSN | 21951071 |
Volume | 6Issue:14 |
Abstract | Actively tuning optical transmission through hybrid metasurfaces incorporated with multifunctional active media holds great promise for the next generation optical devices. In the terahertz (THz) range, they remain rare due to the lack of dynamic and multifunctional designs and materials. Here, a vanadium dioxide (VO )-based hybrid metasurface is proposed to present multifunctional control of THz waves via electrically triggering and ultrafast optical excitation. By minimizing the thermal mass of VO and optimizing the VO patterns within two side gaps of the asymmetric split-ring resonators, a hybrid metasurface which can tune the THz wave with an absolute modulation depth up to 54% and a figure of merit as high as 138% is hereby presented. The hybrid metasurface achieves a switching time of 2.2 s under the electrically triggering and offers an ultrafast modulation within 30 ps under the femtosecond pulse excitation. More interestingly, owing to the intrinsic hysteresis behavior of VO , the hybrid metasurface exhibits distinguishing multistate transmission amplitudes with a single electrical input. In short, this study paves the way for robust multifunctionality in electric-controlled terahertz switching, photonic memory, and ultrafast terahertz optics. |
Keyword | Hybrid Metasurfaces Memory Multifunction Terahertz Vanadium Dioxide |
DOI | 10.1002/adom.201800257 |
URL | View the original |
Language | 英語English |
WOS ID | WOS:000439490700024 |
Scopus ID | 2-s2.0-85046445198 |
Fulltext Access | |
Citation statistics | |
Document Type | Journal article |
Collection | University of Macau |
Affiliation | 1.University of Science and Technology of China 2.Hefei National Laboratory for Physical Sciences at Microscale |
Recommended Citation GB/T 7714 | Cai H.,Chen S.,Zou C.,et al. Multifunctional Hybrid Metasurfaces for Dynamic Tuning of Terahertz Waves[J]. Advanced Optical Materials, 2018, 6(14). |
APA | Cai H.., Chen S.., Zou C.., Huang Q.., Liu Y.., Hu X.., Fu Z.., Zhao Y.., He H.., & Lu Y. (2018). Multifunctional Hybrid Metasurfaces for Dynamic Tuning of Terahertz Waves. Advanced Optical Materials, 6(14). |
MLA | Cai H.,et al."Multifunctional Hybrid Metasurfaces for Dynamic Tuning of Terahertz Waves".Advanced Optical Materials 6.14(2018). |
Files in This Item: | There are no files associated with this item. |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment