scholarly journals Bent-Bent Waveguide Coupling System

2021 ◽  
Vol 3 (1) ◽  
pp. 9-12
Author(s):  
João Paulo N. Torres ◽  
António Baptista ◽  
Vitor Maló Machado ◽  
Ricardo A. Marques Lameirinhas
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Refractive Index ◽  
Energy Transfer ◽  
The Finite Element Method ◽  
Energy Rate ◽  
Coupling System ◽  
Waveguide Coupling ◽  
Bent Waveguides ◽  
Element Method

In this paper, the mechanism of energy transfer between two bent-bent waveguides is analyzed. Focus is done to the effect that some parameters like the refractive index of the substrate and the wavelength cause in the energy rate transfer between the waveguides. Results were validated by using the Finite Element Method (FEM).

scholarly journals A Plasmonic Structure of Fano Resonance in the MIM Waveguide with r-Shaped Resonator for Refractive Index Sensor

2022 ◽  
Author(s):  
Siti Rohimah ◽  
He Tian ◽  
Jinfang Wang ◽  
Jianfeng Chen ◽  
Jina Li ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Refractive Index ◽  
Fano Resonance ◽  
Geometrical Parameters ◽  
Fano Resonances ◽  
The Finite Element Method ◽  
Plasmonic Structure ◽  
Mim Waveguide ◽  
Element Method

Abstract A plasmonic structure of metal-insulator-metal (MIM) waveguide consisting of a single baffle waveguide and an r-shaped resonator is designed to produce Fano resonance. The finite element method uses the finite element method to analyze the transmission characteristics and magnetic field distributions of the plasmonic waveguide distributions. The simulation results exhibit two Fano resonances that can be achieved by the interference between a continuum state in the baffle waveguide and a discrete state in the r-shaped resonator. The Fano resonances can be simply tuned by changing geometrical parameters of the plasmonic structure. The value variations of geometrical parameters have different effects on sensitivity. Thus, the sensitivity of the plasmonic structure can achieve 1333 nm/RIU, with a figure of merit of 5876. The results of the designed plasmonic structure offer high sensitivity and nano-scale integration, which are beneficial to refractive index sensors, photonic devices at the chip nano-sensors, and biosensors applications.

Reconstruction of refractive index profile of optical waveguides by the finite element method

2004 ◽  
Author(s):  
Sigifredo Solano G. ◽  
Catalina A. Ramirez ◽  
Javier Morales ◽  
Pedro I. Torres ◽  
Nicolas A. Gomez Montoya
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Refractive Index ◽  
Optical Waveguides ◽  
Refractive Index Profile ◽  
The Finite Element Method ◽  
Index Profile ◽  
Element Method

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

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