Broadband silicon-based tunable metamaterial microfluidic sensor

作     者：XUFENG JING GUIHONG QIN PENG ZHANG XUFENG JING;GUIHONG QIN;PENG ZHANG

作者机构：Institute of Optoelectronic TechnologyChina Jiliang UniversityHangzhou 310018China Centre for THz ResearchChina Jiliang UniversityHangzhou 310018China 

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

年 卷 期：2022年第10卷第12期

页      面：2876-2885页

核心收录：

学科分类：080202[工学-机械电子工程] 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）] 0802[工学-机械工程] 

基　　金：Natural Science Foundation of Zhejiang Province(LZ21A040003,LY20F050007,LY22F050001) National Natural Science Foundation of China(62175224) Fundamental Research Funds for the Provincial Universities of Zhejiang(2021YW70) Zhejiang University Students Science and Technology Innovation Program(New Talent Program)(2022R409055) 

主　　题：tunable pump absorber 

摘      要：Tunable metamaterial absorbers play an important role in terahertz imaging and *** propose a multifunctional metamaterial absorber based on doped *** introducing resonance and impedance matching into the absorber,a broadband absorption greater than 90%in the range of 0.8–10 THz is *** the same time,the light regulation characteristics of the doped semiconductor are introduced into the absorber,and the precise amplitude control can be achieved in the range of 0.1–1.2 THz by changing the pump luminous *** addition,based on the principle of light-regulating the concentration of doped silicon carriers,the medium-doped silicon material is replaced by a highly doped silicon material,and a sensor with a sensitivity of up to 500 GHz/RIU is realized by combining the wave absorber with the microfluidic ***,the broadband absorption characteristics and sensing performance of alcohol and water on the prepared device are verified by experiments,indicating that the absorber may have great potential in the field of sensor detection.