Active KTaO3 hybrid terahertz metamaterial

Abstract The dielectric properties of an active KTaO3 hybrid metamaterial structure and its tunability under external electric fields are investigated at room temperature by means of terahertz time-domain spectroscopy. Application of the electric field leads to an appreciable tuning of the dielectri...

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Autores principales:	Liang Wu, Jinglong Liu, Hui Li, Chunfeng Ding, Ningning Xu, Xiaolei Zhao, Zongcheng Xu, Quan Sheng, Jianquan Yao, Jining Li, Xin Ding, Weili Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4bb4daf46cc1406a8b3f2aa1ca3d2d4d
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spelling	oai:doaj.org-article:4bb4daf46cc1406a8b3f2aa1ca3d2d4d2021-12-02T12:30:35ZActive KTaO3 hybrid terahertz metamaterial10.1038/s41598-017-05529-02045-2322https://doaj.org/article/4bb4daf46cc1406a8b3f2aa1ca3d2d4d2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05529-0https://doaj.org/toc/2045-2322Abstract The dielectric properties of an active KTaO3 hybrid metamaterial structure and its tunability under external electric fields are investigated at room temperature by means of terahertz time-domain spectroscopy. Application of the electric field leads to an appreciable tuning of the dielectric loss, which is up to 17%. Meanwhile, the refractive index also changes appreciably. These findings are attributed to the internal space charge field in the crystal caused by the excited free carriers.Liang WuJinglong LiuHui LiChunfeng DingNingning XuXiaolei ZhaoZongcheng XuQuan ShengJianquan YaoJining LiXin DingWeili ZhangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-5 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Liang Wu Jinglong Liu Hui Li Chunfeng Ding Ningning Xu Xiaolei Zhao Zongcheng Xu Quan Sheng Jianquan Yao Jining Li Xin Ding Weili Zhang Active KTaO3 hybrid terahertz metamaterial
description	Abstract The dielectric properties of an active KTaO3 hybrid metamaterial structure and its tunability under external electric fields are investigated at room temperature by means of terahertz time-domain spectroscopy. Application of the electric field leads to an appreciable tuning of the dielectric loss, which is up to 17%. Meanwhile, the refractive index also changes appreciably. These findings are attributed to the internal space charge field in the crystal caused by the excited free carriers.
format	article
author	Liang Wu Jinglong Liu Hui Li Chunfeng Ding Ningning Xu Xiaolei Zhao Zongcheng Xu Quan Sheng Jianquan Yao Jining Li Xin Ding Weili Zhang
author_facet	Liang Wu Jinglong Liu Hui Li Chunfeng Ding Ningning Xu Xiaolei Zhao Zongcheng Xu Quan Sheng Jianquan Yao Jining Li Xin Ding Weili Zhang
author_sort	Liang Wu
title	Active KTaO3 hybrid terahertz metamaterial
title_short	Active KTaO3 hybrid terahertz metamaterial
title_full	Active KTaO3 hybrid terahertz metamaterial
title_fullStr	Active KTaO3 hybrid terahertz metamaterial
title_full_unstemmed	Active KTaO3 hybrid terahertz metamaterial
title_sort	active ktao3 hybrid terahertz metamaterial
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/4bb4daf46cc1406a8b3f2aa1ca3d2d4d
work_keys_str_mv	AT liangwu activektao3hybridterahertzmetamaterial AT jinglongliu activektao3hybridterahertzmetamaterial AT huili activektao3hybridterahertzmetamaterial AT chunfengding activektao3hybridterahertzmetamaterial AT ningningxu activektao3hybridterahertzmetamaterial AT xiaoleizhao activektao3hybridterahertzmetamaterial AT zongchengxu activektao3hybridterahertzmetamaterial AT quansheng activektao3hybridterahertzmetamaterial AT jianquanyao activektao3hybridterahertzmetamaterial AT jiningli activektao3hybridterahertzmetamaterial AT xinding activektao3hybridterahertzmetamaterial AT weilizhang activektao3hybridterahertzmetamaterial
_version_	1718394332875063296

Active KTaO3 hybrid terahertz metamaterial

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