Thin Film Sensing with Asymmetric Terahertz Metasurfaces

被引：0
|
作者：
Banerjee, Sabyasachi [1 ,2 ]
Kumar, Deepak [1 ,3 ]
Goel, Sanket [2 ]
Pal, Bishnu P. [1 ]
Chowdhury, Dibakar Roy [1 ]
机构：
[1] Mahindra EcoleCent, Hyderabad 500043, Telangana, India
[2] BITS Pilani Hyderabad, Dept Elect & Elect Engn, Hyderabad 500078, Telangana, India
[3] Panjab Univ, Dept Phys, Chandigarh 160014, India
来源：
2019 WORKSHOP ON RECENT ADVANCES IN PHOTONICS (WRAP) | 2019年
关键词：
sensors; metamaterials; plasmonics; Q factor; Figure of merit;
D O I：
暂无
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this work, we demonstrate asymmetric terahertz metasurfaces for thin film sensing. The asymmetric SRR based metasurface design is observed to excite a sharp Fano-like dark mode resonance which is not seen in the corresponding symmetric SRR based design. The simulated transmission characteristics show a close match with the experimental results. Sensitivity and Figure of Merit have been calculated for both the sensor designs and it is observed that the Fano-identical dark mode resonance in the asymmetric SRR based metasurface is highly suitable for thin film sensing due to its high FoM value.
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页数：3
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