Guided modes of Ti:LiNbO/sub 3/ channel waveguides: a novel quasi-analytical technique in comparison with the scalar finite-element method

1988 ◽  
Vol 6 (6) ◽  
pp. 1126-1135 ◽  
Author(s):  
E. Strake ◽  
G.P. Bava ◽  
I. Montrosset
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Analytical Technique ◽  
Guided Modes ◽  
Channel Waveguides ◽  
Element Method

Scalar finite-element evaluation of cut-off wavelength in glass wave guides and comparison with experiment

1990 ◽  
Vol 68 (11) ◽  
pp. 1251-1256 ◽  
Author(s):  
Guy Lamouche ◽  
S. Iraj Najafi
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Single Mode ◽  
First Order ◽  
Comparison With Experiment ◽  
Wave Guides ◽  
Channel Waveguides ◽  
Element Method

The scalar finite-element method is used to analyze ion-exchanged glass channel waveguides. Cut-off wavelengths for fundamental and first-order modes are calculated and the single-mode region is determined. The results are compared with the experimentally measured values.

scholarly journals Experimental, Numerical, and Analytical Study on The Effect of Graphene Oxide in The Mechanical Properties of a Solvent-Free Reinforced Epoxy Resin

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2115 ◽  
Author(s):  
Sergio Horta Muñoz ◽  
María del Carmen Serna Moreno ◽  
José Miguel González-Domínguez ◽  
Pablo Antonio Morales-Rodríguez ◽  
Ester Vázquez
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Graphene Oxide ◽  
Epoxy Resin ◽  
Failure Modes ◽  
Mechanical Response ◽  
Solvent Free ◽  
Image Correlation ◽  
Analytical Technique ◽  
Element Method

This paper presents a methodology for manufacturing nanocomposites from an epoxy resin reinforced with graphene oxide (GO) nanoparticles. A scalable and sustainable fabrication process, based on a solvent-free method, is proposed with the objective of achieving a high level of GO dispersion, while maintaining matrix performance. The results of three-point bending tests are examined by means of an analytical technique which allows determining the mechanical response of the material under tension and compression from flexural data. As result, an increase of 39% in the compressive elastic modulus of the nanocomposite is found with the addition of 0.3 wt % GO. In parallel, we described how the strain distribution and the failure modes vary with the amount of reinforcement based on digital image correlation (DIC) techniques and scanning electron microscopy (SEM). A novel analytical model, capable of predicting the influence of GO content on the elastic properties of the material, is obtained. Numerical simulations considering the experimental conditions are carried out. the full strain field given by the DIC system is successfully reproduced by means of the finite element method (FEM). While, the experimental failure is explained by the crack growth simulations using the eXtended finite element method (XFEM).

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.

Sign in / Sign up

Export Citation Format

Share Document