Tunable Perfect Meta-Absorber with High-Sensitive Polarization Characteristic

被引：26
作者：
Wen, Yao [1 ]
Liang, Zhaokang [1 ]
Lin, Yu-Sheng [1 ]
机构：
[1] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Sch Elect & Informat Technol, Guangzhou 510275, Peoples R China
来源：
ADVANCED PHOTONICS RESEARCH | 2021年 / 2卷 / 03期
关键词：
electric split-ring resonator; high sensitivity; metamaterial; perfect absorption; polarization-dependence; independence;
D O I：
10.1002/adpr.202000027
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A tunable perfect meta-absorber (PMA) composed of an electric split-ring resonator (eSRR) and a cross-shaped nanostructure is proposed. Owing to the electromagnetic coupling effect generated between dipole and inductive-capacitive (LC) resonances, the PMA exhibits perfect absorption, tunable resonance, variable optical attenuation, and switchable polarization-dependence/independence characteristics. Furthermore, the PMA is demonstrated to be feasible for sensing applications. The PMA exhibits high sensing performance with a sensitivity of 1200nm/RIU. Such results indicate that the proposed PMA can be used in variable optical attenuators, polarization switches, tunable absorbers, and sensors applications.
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页数：6
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