All-dielectric double-layer honeycomb tunable metamaterial absorber with integrated gold nanoparticles

作     者：YIXIN LIU YING TIAN CHENXIA LI BO FANG JIANJUN LIU ZHI HONG XUFENG JING 

作者机构：Institute of Optoelectronic TechnologyChina Jiliang UniversityHangzhou 310018China Centre for THz ResearchChina Jiliang UniversityHangzhou 310018China College of Metrology&Measurement EngineeringChina Jiliang UniversityHangzhou 310018China College of Information EngineeringChina Jiliang UniversityHangzhou 310018China 

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

年 卷 期：2024年第12卷第10期

页      面：2344-2353页

核心收录：

学科分类：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）] 

基　　金：Science and Technology Innovation Leading Talent Project of Special Support Plan for High-Level Talents(2021R52032) 

主　　题：nanoparticles absorber dielectric 

摘      要：The optical regulation strategy of gold nanoparticles can significantly improve the performance of terahertz *** designed an all-dielectric double-layer honeycomb metamaterial absorber(MA)to demonstrate the broadband terahertz absorption characteristics in the presence or absence of gold *** it does not contain gold nanoparticles,MA exhibits a peak absorption efficiency of over 99%within the bandwidth range of∼486 *** particular,gold nanospheres(AuNPs),gold nanobipyramids(AuNBPs),and gold nanorods(AuNRs)are used to modulate the optical coupling effect of metamaterial absorbers,which improves their modulation *** the simulation,the effective medium theory(EMT)was applied to quantitatively calculate the optical response of a metamaterial absorber with an integrated gold nanoparticle equivalent gold *** integrated gold nanoparticle equivalent gold layer can achieve modulation enhancement of one order of *** the experiment,our process is compatible with CMOS technology,which may contribute to the development of terahertz *** addition,the tunability and modulation enhancement characteristics demonstrated are beneficial for creating dynamic functional terahertz devices,such as THz modulators and switches.