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.

scholarly journals Application of Finite Element Method for Analysis of Nanostructures

2017 ◽  
Vol 11 (2) ◽  
pp. 116-120 ◽  
Author(s):  
Jozef Bocko ◽  
Pavol Lengvarský
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Element Model ◽  
Geometrical Parameters ◽  
The Finite Element Method ◽  
Beam Elements ◽  
Stiffness Properties ◽  
Force Displacement ◽  
The Finite Element Model ◽  
Element Method

AbstractThe paper deals with application of the finite element method in modelling and simulation of nanostructures. The finite element model is based on beam elements with stiffness properties gained from the quantum mechanics and nonlinear spring elements with force-displacement relation are gained from Morse potential. Several basic mechanical properties of structures are computed by homogenization of nanostructure, e.g. Young's modulus, Poisson's ratio. The problems connecting with geometrical parameters of nanostructures are considered and their influences to resulting homogenized quantities are mentioned.

scholarly journals ВЛИЯНИЕ ИЗГИБА ПЛУНЖЕРА НА ИЗМЕНЕНИЕ ОБЪЕМА В ЦИЛИНДРОВОЙ ПОЛОСТИ АВИАЦИОННОГО АКСИАЛЬНО-ПЛУНЖЕРНОГО НАСОСА

2019 ◽  
pp. 88-94
Author(s):  
Владимир Николаевич Доценко ◽  
Иван Григорьевич Лихошерст ◽  
Мелания Николаевна Бурда
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Smooth Function ◽  
Cylinder Block ◽  
Geometrical Parameters ◽  
Contact Deformation ◽  
The Finite Element Method ◽  
Three Dimensional Model ◽  
Rigid Cylinder ◽  
Element Method

In this article, the task is to consider the effect of the piston bending in an axial- piston pump under the action of hydraulic force on the kinematics of the pump. The change in kinematics due to the elastic deformation of the piston is estimated by the axial displacement of the piston face. The study takes into account the bias of the plunger in the gap, the elastic bending deformation of the plunger, the contact deformation of the plunger and the cylinder block. The task is considered on three models: a rigid piston in a rigid cylinder block; deformable piston in a rigid cylinder block; deformable piston, block, shoe, and disk. The values of the displacement of the piston, caused by elastic forces and misalignment in the gap depending on its position were obtained for the first time as a result of the analysis. The problem is solved both analytically and numerically using the finite element method. In the analytical solution of the problem, the piston is represented as a beam supported by pin and roller at the points of contact of the piston with the walls of the cylinder block. The three-dimensional model of the pump is applied to solve the problem by the finite element method, the contact deformation of the piston and the block is considered. According to the simulation results, the displacement of the piston is obtained depending on the position of the piston. The results of modeling an analytical model are presented in the form of a smooth function, and the results of numerical simulation using the finite-element method obtained for several points are interpolated by a smooth function. The conclusions suggest that the greatest deformations are achieved in the piston located at the bottom dead center, and the gap between the piston and the sleeve and the overall stiffness of the contact parts have the greatest effect. The results of the work can be used to correct the geometrical parameters of a heavily loaded aviation axial-plunger pump to reduce flow and pressure pulsations caused by the kinematics of the pump.

scholarly journals AN EXAMPLE OF USING FEM FOR AIR FLOW ANALYSIS THROUGH AIRCRAFT AREAL INJECTOR

Aviation ◽  
2006 ◽  
Vol 10 (2) ◽  
pp. 13-16
Author(s):  
Adam Konieczny
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Flow Parameter ◽  
Flow Analysis ◽  
State Committee ◽  
Air Distribution ◽  
Geometrical Parameters ◽  
The Finite Element Method ◽  
Method Analysis ◽  
Element Method

In the article an example of using the Finite Element Method to determine the air distribution that is used in the atomization of fuel by the aerial injector is presented. In detail, Finite Element Method analysis appeared to be helpful in verifying the geometrical parameter of the injector – the two‐flow parameter. The Finite Element Method results data of airflow distributions at the end of sections of an aerial injector allows a real geometric parameter to be verified. Full information about this parameter has shown the need to change other geometrical parameters. This work was made within the framework of a research project financed by State Committee for Scientific Research no. 5T12D 027 24.

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

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).

A Numerical Model for Micro Balloon-Jointed Actuation

2005 ◽  
Author(s):  
ZhiYong An ◽  
Yenwen Lu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Model ◽  
Theoretical Study ◽  
Geometrical Parameters ◽  
Plane Rotation ◽  
The Finite Element Method ◽  
Out Of Plane ◽  
Element Method

This paper reports a theoretical study of the pneumatic balloon-jointed actuation, which has been utilized in the microfinger and the microhand to perform an out-of-plane rotation [1]. The finite element method (FEM) is utilized to describe and to predict the performance of this actuation, in terms of the actuation angles, forces, and structure stiffness. Several related geometrical parameters have been studied, providing the guidelines of the micro balloon-jointed actuation.

scholarly journals Formation Laws of Direction of Fano Line-Shape in a Ring MIM Plasmonic Waveguide Side-Coupled with a Rectangular Resonator and Nano-Sensing Analysis of Multiple Fano Resonances

Crystals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 819
Author(s):  
Dayong Zhang ◽  
Li Cheng ◽  
Zuochun Shen
Keyword(s):  
Finite Element Method ◽  
Refractive Index ◽  
Line Shape ◽  
Fano Resonance ◽  
Ring Resonator ◽  
Fano Resonances ◽  
Metal Insulator ◽  
Refractive Index Sensing ◽  
Metal Insulator Metal ◽  
Mim Waveguide

Plasmonic MIM (metal-insulator-metal) waveguides based on Fano resonance have been widely researched. However, the regulation of the direction of the line shape of Fano resonance is rarely mentioned. In order to study the regulation of the direction of the Fano line-shape, a Fano resonant plasmonic system, which consists of a MIM waveguide coupled with a ring resonator and a rectangle resonator, is proposed and investigated numerically via FEM (finite element method). We find the influencing factors and formation laws of the ‘direction’ of the Fano line-shape, and the optimal condition for the generation of multiple Fano resonances; and the application in refractive index sensing is also well studied. The conclusions can provide a clear theoretical reference for the regulation of the direction of the line shape of Fano resonance and the generation of multi Fano resonances in the designs of plasmonic nanodevices.

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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