Active control of EIT-like response in a symmetry-broken metasurface with orthogonal electric dipolar resonators

作     者：RUISHENG YANG QUANHONG FU YUANCHENG FAN WEIQI CAI KEPENG QIU WEIHONG ZHANG FULI ZHANG 

作者机构：Research&Development Institute in ShenzhenKey Laboratory of Space Applied Physics and ChemistryMinistry of EducationandDepartment of Applied PhysicsSchool of Natural and Applied SciencesNorthwestern Polytechnical UniversityXi’an710072China School of Mechanical EngineeringNorthwestern Polytechnical UniversityXi’an710072China 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2019年第7卷第9期

页      面：955-960页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：National Natural Science Foundation of China(NSFC)(11372248,11674266,61505164,61771402) Natural Science Foundation of Shaanxi Province(2017JM6094,2017JQ5116,2018JM6024) Shenzhen Science and Technology Innovation Commission(JCYJ20170817162221169) Fundamental Research Funds for the Central Universities(3102017zy033,3102018jgc008,3102018zy045) Society of Hong Kong Scholars(XJ2017006) 

主　　题：PIN EIT Active control of EIT-like response in a symmetry-broken metasurface with orthogonal electric dipolar resonators 

摘      要：The active control of electromagnetic response in metamaterial and mutual coupling between resonant building blocks is of fundamental importance in realizing high-quality metamaterials. In this work, we propose and experimentally demonstrate the tunabilities of symmetry-broken metasurfaces made of orthogonal electric dipolar resonators. The metasurface with vertical and horizontal wires is integrated with a PIN diode for active *** is found that the electromagnetically induced transparency(EIT)-like spectrum appears due to the destructive or constructive interferences between the two electric dipolar modes when the structural symmetry broken is introduced to the metasurface. Different from previous works on the EIT-like effect, there is only electric dipole response in our metasuface. The microscopic response of the metasurface is numerically calculated to illustrate the mode coupling between the orthogonal electric dipolar resonators. By applying temporal coupled-mode theory,the interaction between the electromagnetic wave and the symmetry-broken metasurface is described, and the characteristic parameters of the resonator system, which determine the electromagnetic response of the metasurface, are acquired.