Plasmonic Refractive Index Sensor Based on Ring-Type Pentagonal Resonator with High Sensitivity

被引：29
|
作者：
Al Mahmud, Rabiul [1 ]
Faruque, Md. Omar [1 ]
Sagor, Rakibul Hasan [1 ]
机构：
[1] Islamic Univ Technol IUT, Dept Elect & Elect Engn, Gazipur 1704, Bangladesh
来源：
PLASMONICS | 2021年 / 16卷 / 03期
关键词：
Plasmonics; Metal insulator metal (MIM); Refractive index sensor; Pentagonal resonator; WAVE-GUIDE;
D O I：
10.1007/s11468-020-01357-7
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A highly sensitive refractive index sensor with metal insulator metal configuration has been proposed and numerically investigated the performance parameters. The sensor composed of a straight waveguide coupled with a ring-type regular pentagonal resonator. The maximum sensitivity observed is as high as 2325 nm/RIU with a figure of merit of 46. The sensor has been analyzed for the dielectrics whose refractive indices are between 1 to 1.02 and 1.34 to 1.40 and achieved a sensing resolution of 4.30x10(-6) RIU. High sensitivity and FOM of the sensor with close-packed configuration make it suitable candidate for lab-on-chip sensing applications, biosensors, and optical applications.
引用
收藏
页码：873 / 880
页数：8
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