Multifunctional chiral metamaterial based on asymmetric interface and VO2 metasurfaces

被引：3
|
作者：
Yi, Xuran [1 ]
Chen, Kejian [1 ]
Lin, Yanni [1 ]
Shen, Yang [1 ]
Zhou, Zheqi [1 ]
机构：
[1] Univ Shanghai Sci & Technol, Engn Res Ctr Opt Instrument & Syst, Shanghai Key Lab Modern Opt Syst, Minist Educ, 516 Jungong Rd, Shanghai 200093, Peoples R China
来源：
OPTICAL MATERIALS | 2023年 / 146卷
基金：
中国国家自然科学基金;
关键词：
Metamaterial; Asymmetric interface; Tunable; Chirality; INTENSITY DIFFERENTIAL SCATTERING; HELICAL STRUCTURES; REFRACTIVE-INDEX; LIGHT; TRANSITION; ABSORBER;
D O I：
10.1016/j.optmat.2023.114561
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A multifunctional chiral metamaterial based on the asymmetric interface condition and thermal-induced phase transition is proposed in this paper. Adding the dynamic layer to form the asymmetric interface will excite the chirality. The CDMAX can reach 0.83. Besides, the chirality state can be modified by the thermal control conductivity of VO2. CD of metamaterials reaches 0.6 at 5.425 THz when VO2 is insulated and switches to -0.4 after it turns to metallic. An application in double-encryption is envisaged and discussed. The proposed multifunctional chiral metamaterials provide a wide range of possible applications in chiral switching, sensing, communications, encryption, etc.
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页数：6
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