Manipulation on radiation angles via spatially organized multipoles with vertical split-ring resonators

Author:

Tsai Hao-Yuan1,Chen Che-Chin2,Chen Chun-Yen1,Lin Yi-Jie1,Chen Wei-Chun2,Chen Hung-Pin2ORCID,Lin Yu-Wei2,Tanaka Takuo34ORCID,Yen Ta-Jen1ORCID

Affiliation:

1. Materials Science and Engineering , National Tsing Hua University , Hsinchu , Taiwan

2. Taiwan Instrument Research Institute, National Applied Research Laboratories , Hsinchu , 30076 , Taiwan

3. Metamaterials Laboratory , RIKEN Cluster for Pioneering Research , 2-1 Hirosawa , Wako , Saitama , 351-0198 , Japan

4. Innovative Photon Manipulation Research Team , RIKEN Center for Advanced Photonics , 2-1 Hirosawa , Wako , Saitama , 351-0198 , JAPAN

Abstract

Abstract Herein, the radiation patterns of single-split ring resonators (SSRRs) and double-split ring resonators (DSRRs) in the vertical direction are tailored by reconfiguring the resonator geometries. To design unequal arm lengths for controlling the floating split angle of the resonators and changing their electromagnetic multipole compositions, vertical metamaterials were fabricated using the metal-stress-driven self-folding method. The simulation results well agree with the experimental transmittance and reflectance results and demonstrate the geometry-dependent angle variation of the far-field radiation. Symmetric SSRRs and DSRRs radiate in the vertical and horizontal directions, respectively. With increasing pad shift, the radiation angle of the asymmetric SSRR completely rotates toward the horizontal direction along the ring plane, but the DSRRs can rotate only from 0° to 45° to the horizontal plane. Furthermore, by decomposing the multipoles into their constituents, we show that the directional scattering performance can be verified by manipulating the horizontal and vertical components of the electric dipoles. This novel combination of SSRRs and DSRRs can effectively and efficiently reconfigure the radiation direction in the infrared (IR) region, paving the way for color routers, metasurfaces, and directive IR emitters in compact optical metadevices.

Funder

Ministry of Education, High Entropy Materials Center

National Science and Technology Council

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3