Design and analysis of a triangular silicon based nano plasmonic coupler with an enhanced transmittance at the optical wavelength

被引：0
|
作者：
Rahnuma, Anika [1 ,2 ]
Enam, Anika [3 ]
Mahmud, Russel Reza [1 ]
Nayan, Md Faysal [1 ]
Rafsan, Ahmed Afif [1 ]
机构：
[1] Ahsanullah Univ Sci & Technol, Dept Elect & Elect Engn, Tejgaon Ind Area, Dhaka 1208, Bangladesh
[2] Daffodil Int Univ, Dept Elect & Elect Engn, Daffodil Smart City 1216, Bangladesh
[3] Islamic Univ Technol, Dept Elect & Elect Engn, Board Bazar 1704, Gazipur, Bangladesh
来源：
OPTICS COMMUNICATIONS | 2025年 / 577卷
关键词：
Nano-plasmonic coupler; Coupling efficiency; Surface plasmon polariton; Plasmonic waveguide; Dielectric waveguide; MIM waveguide; DIRECTIONAL-COUPLERS;
D O I：
10.1016/j.optcom.2024.131451
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The presented research discusses the analysis of a triangular-shaped three-dimensional nano-plasmonic coupler. The coupler's intended purpose is to couple two waveguides: silicon and metal-insulator-metal (MIM), where gold has been utilized to clad the MIM waveguide. One of the most important metrics for evaluating nanoplasmonic couplers is their coupling efficiency. The study suggests a unique structure with a maximum transmission efficiency of-92% at the conventional optical wavelength of 1550 nm to increase efficiency. The optimum dimensions for the proposed triangular coupler were found by methodically adjusting the structural characteristics, which resulted in maximizing the coupling efficiency.
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页数：6
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