Active KTaO(3) hybrid terahertz metamaterial

The dielectric properties of an active KTaO(3) 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,...

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Autores principales: Wu, Liang, Liu, Jinglong, Li, Hui, Ding, Chunfeng, Xu, Ningning, Zhao, Xiaolei, Xu, Zongcheng, Sheng, Quan, Yao, Jianquan, Li, Jining, Ding, Xin, Zhang, Weili
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5519665/
https://www.ncbi.nlm.nih.gov/pubmed/28729669
http://dx.doi.org/10.1038/s41598-017-05529-0
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author Wu, Liang
Liu, Jinglong
Li, Hui
Ding, Chunfeng
Xu, Ningning
Zhao, Xiaolei
Xu, Zongcheng
Sheng, Quan
Yao, Jianquan
Li, Jining
Ding, Xin
Zhang, Weili
author_facet Wu, Liang
Liu, Jinglong
Li, Hui
Ding, Chunfeng
Xu, Ningning
Zhao, Xiaolei
Xu, Zongcheng
Sheng, Quan
Yao, Jianquan
Li, Jining
Ding, Xin
Zhang, Weili
author_sort Wu, Liang
collection PubMed
description The dielectric properties of an active KTaO(3) 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.
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spelling pubmed-55196652017-07-21 Active KTaO(3) hybrid terahertz metamaterial Wu, Liang Liu, Jinglong Li, Hui Ding, Chunfeng Xu, Ningning Zhao, Xiaolei Xu, Zongcheng Sheng, Quan Yao, Jianquan Li, Jining Ding, Xin Zhang, Weili Sci Rep Article The dielectric properties of an active KTaO(3) 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. Nature Publishing Group UK 2017-07-20 /pmc/articles/PMC5519665/ /pubmed/28729669 http://dx.doi.org/10.1038/s41598-017-05529-0 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Wu, Liang
Liu, Jinglong
Li, Hui
Ding, Chunfeng
Xu, Ningning
Zhao, Xiaolei
Xu, Zongcheng
Sheng, Quan
Yao, Jianquan
Li, Jining
Ding, Xin
Zhang, Weili
Active KTaO(3) hybrid terahertz metamaterial
title Active KTaO(3) hybrid terahertz metamaterial
title_full Active KTaO(3) hybrid terahertz metamaterial
title_fullStr Active KTaO(3) hybrid terahertz metamaterial
title_full_unstemmed Active KTaO(3) hybrid terahertz metamaterial
title_short Active KTaO(3) hybrid terahertz metamaterial
title_sort active ktao(3) hybrid terahertz metamaterial
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5519665/
https://www.ncbi.nlm.nih.gov/pubmed/28729669
http://dx.doi.org/10.1038/s41598-017-05529-0
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