Tailoring active color rendering and multiband photodetection in a vanadium-dioxide-based metamaterial absorber  

作　　者：SHICHAO SONG XIAOLIANG MA MINGBO PU XIONG LI YINGHUI GUO PING GAO XIANGANG LUO 

机构地区：[1]State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics,Chinese Academy of Sciences, Chengdu 610209, China [2]University of Chinese Academy of Sciences, Beijing 100049, China

出　　处：《Photonics Research》2018年第6期492-497,共6页光子学研究（英文版）

基　　金：973 Program of China(2013CBA01700);National Natural Science Foundation of China(NSFC)(61622509,61675208)

摘　　要：Metamaterials have demonstrated exotic electromagnetic properties, which offer a good platform for realizing light absorption, photodetection, filtering, and so on. However, broadband multifunctional metamaterial absorbers are restricted in cascaded structures. Here, broadband multifunctional properties were realized by introducing vanadium dioxide into a metamaterial absorber. Through the modified design and highly efficient utilization of multiple resonant modes, both plasmonic tunable color filters and near-infrared photodetectors can be simultaneously achieved by this construction. Meanwhile, active color and a photodetection band in the near-infrared range can become tunable with the insulating-metallic transition of vanadium dioxide. Thus, the variations of rendering colors could correspondingly indicate shifts of the near-infrared photodetection bands. This method theoretically confirms the feasibility of designing multifunctional devices via a terial absorber, which holds great promise for future versatile utilization of vanadium-dioxide-based metamamultiple physical mechanisms to achieve numerous functionalities in a simple nanostructure or device.Metamaterials have demonstrated exotic electromagnetic properties, which offer a good platform for realizing light absorption, photodetection, filtering, and so on. However, broadband multifunctional metamaterial absorbers are restricted in cascaded structures. Here, broadband multifunctional properties were realized by introducing vanadium dioxide into a metamaterial absorber. Through the modified design and highly efficient utilization of multiple resonant modes, both plasmonic tunable color filters and near-infrared photodetectors can be simultaneously achieved by this construction. Meanwhile, active color and a photodetection band in the near-infrared range can become tunable with the insulating–metallic transition of vanadium dioxide. Thus, the variations of rendering colors could correspondingly indicate shifts of the near-infrared photodetection bands. This method theoretically confirms the feasibility of designing multifunctional devices via a vanadium-dioxide-based metamaterial absorber, which holds great promise for future versatile utilization of multiple physical mechanisms to achieve numerous functionalities in a simple nanostructure or device.

关 键 词：Surface plasmons METAMATERIALS Color PHOTODETECTORS 

分 类 号：TN1[电子电信—物理电子学]