Flexible all-dielectric metamaterials in terahertz range based on ceramic microsphere/PDMS composite
Flexible all-dielectric metamaterials in terahertz range based on ceramic microsphere/PDMS composite
复制标题
基于陶瓷微球/PDMS复合材料的太赫兹范围柔性全介电超材料
DOI：
10.1364/oe.25.029155
复制
发表时间：
2017-11-13
期刊：
影响因子：
3.8
通讯作者：
Qu, Zhaowei
中科院分区：
文献类型：
--
作者：
Lan, Chuwen;Bi, Ke;Qu, Zhaowei
A flexible all-dielectric metamaterials composed of single-layer ceramic microspheres embedded in elastomeric medium is proposed and experimentally demonstrated in terahertz (THz) range. The THz waves are strongly confined in the high-permittivity and low-loss ceramic (ZrO2) microspheres resulting in remarkable Mie magnetic resonances, which can be effectively tuned with strained elastomeric medium. The first resonance mode would experience red shifts with the increased strain along magnetic field direction, while it would experience blue shifts with the increased strain along electric field direction. These properties are well explained by dipole-dipole coupling theory. This work provides an easy and cheap method to obtain tunable all-dielectric metamaterials in THz range. (C) 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
