Optimization of the terahertz metamaterial modulator using Fabry-Perot resonances and higher-order plasmonic modes

被引：0
|
作者：
Seliuta, D. [1 ,2 ]
Slekas, G. [1 ,2 ]
Kancleris, Z. [1 ]
Valusis, G. [1 ]
机构：
[1] Ctr Phys Sci & Technol, Sauletekio Ave 3, LT-10257 Vilnius, Lithuania
[2] Vilnius Gediminas Tech Univ, Sauletekio Ave 11, LT-10223 Vilnius, Lithuania
来源：
TERAHERTZ EMITTERS, RECEIVERS, AND APPLICATIONS IX | 2019年 / 10756卷
关键词：
Metamaterials; split-ring resonator; terahertz; modulation; Fabry-Perot resonance;
D O I：
10.1117/12.2320718
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Terahertz modulators based on frequency-tunable metamaterials are designed, produced and investigated. It is shown that optimization of the substrate thickness allows to increase the modulation depth and reduce the insertion loss of the modulator. Enhancement mechanism of higher-order resonant modes in densely packed resonator arrays is suggested. It is demonstrated that the resonant frequency of the fifth order plasmonic mode can be effectively tuned which makes the device attractive for practical applications.
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页数：6
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