Hybrid Resonators and Highly Tunable Terahertz Metamaterials Enabled by Vanadium Dioxide (VO2)

Abstract Hybrid metamaterials that exhibit reconfigurable responses under external stimulus, such as electric fields and light radiation, have only recently been demonstrated by combining active media with patterned metallic structures. Nevertheless, hybrid terahertz (THz) metamaterials whose spectr...

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Autores principales:	Shengxiang Wang, Lei Kang, Douglas H. Werner
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7ad64c2911eb4f2bb3c905a3524ac1ee
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spelling	oai:doaj.org-article:7ad64c2911eb4f2bb3c905a3524ac1ee2021-12-02T15:05:52ZHybrid Resonators and Highly Tunable Terahertz Metamaterials Enabled by Vanadium Dioxide (VO2)10.1038/s41598-017-04692-82045-2322https://doaj.org/article/7ad64c2911eb4f2bb3c905a3524ac1ee2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04692-8https://doaj.org/toc/2045-2322Abstract Hybrid metamaterials that exhibit reconfigurable responses under external stimulus, such as electric fields and light radiation, have only recently been demonstrated by combining active media with patterned metallic structures. Nevertheless, hybrid terahertz (THz) metamaterials whose spectral performance can be dynamically tuned over a large scale remain rare. Compared with most active media (for instance, silicon) that provide limited activity, vanadium dioxide (VO2), which exhibits an insulator-to-metal transition, has been recently explored to facilitate dynamically tunable metamaterials. More importantly, the phase transition yields a three orders of magnitude increase in THz electrical conductivity, which suggests the potential for creating VO2 based hybrid resonators that operate at THz frequencies. Here, we show that an integration of VO2 structures and conventional metallic resonating components can enable a class of highly tunable THz metamaterials. Considering the widely studied phase-transition dynamics in VO2, the proposed hybrid metamaterials are capable of offering ultrafast modulation of THz radiation.Shengxiang WangLei KangDouglas H. WernerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shengxiang Wang Lei Kang Douglas H. Werner Hybrid Resonators and Highly Tunable Terahertz Metamaterials Enabled by Vanadium Dioxide (VO2)
description	Abstract Hybrid metamaterials that exhibit reconfigurable responses under external stimulus, such as electric fields and light radiation, have only recently been demonstrated by combining active media with patterned metallic structures. Nevertheless, hybrid terahertz (THz) metamaterials whose spectral performance can be dynamically tuned over a large scale remain rare. Compared with most active media (for instance, silicon) that provide limited activity, vanadium dioxide (VO2), which exhibits an insulator-to-metal transition, has been recently explored to facilitate dynamically tunable metamaterials. More importantly, the phase transition yields a three orders of magnitude increase in THz electrical conductivity, which suggests the potential for creating VO2 based hybrid resonators that operate at THz frequencies. Here, we show that an integration of VO2 structures and conventional metallic resonating components can enable a class of highly tunable THz metamaterials. Considering the widely studied phase-transition dynamics in VO2, the proposed hybrid metamaterials are capable of offering ultrafast modulation of THz radiation.
format	article
author	Shengxiang Wang Lei Kang Douglas H. Werner
author_facet	Shengxiang Wang Lei Kang Douglas H. Werner
author_sort	Shengxiang Wang
title	Hybrid Resonators and Highly Tunable Terahertz Metamaterials Enabled by Vanadium Dioxide (VO2)
title_short	Hybrid Resonators and Highly Tunable Terahertz Metamaterials Enabled by Vanadium Dioxide (VO2)
title_full	Hybrid Resonators and Highly Tunable Terahertz Metamaterials Enabled by Vanadium Dioxide (VO2)
title_fullStr	Hybrid Resonators and Highly Tunable Terahertz Metamaterials Enabled by Vanadium Dioxide (VO2)
title_full_unstemmed	Hybrid Resonators and Highly Tunable Terahertz Metamaterials Enabled by Vanadium Dioxide (VO2)
title_sort	hybrid resonators and highly tunable terahertz metamaterials enabled by vanadium dioxide (vo2)
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/7ad64c2911eb4f2bb3c905a3524ac1ee
work_keys_str_mv	AT shengxiangwang hybridresonatorsandhighlytunableterahertzmetamaterialsenabledbyvanadiumdioxidevo2 AT leikang hybridresonatorsandhighlytunableterahertzmetamaterialsenabledbyvanadiumdioxidevo2 AT douglashwerner hybridresonatorsandhighlytunableterahertzmetamaterialsenabledbyvanadiumdioxidevo2
_version_	1718388652164251648

Hybrid Resonators and Highly Tunable Terahertz Metamaterials Enabled by Vanadium Dioxide (VO2)

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