Results 101 to 110 of about 2,688 (224)

Adaptive perfectly matched layer for wood's anomalies in diffraction gratings

, 2012
International audienceWe propose an Adaptive Perfectly Matched Layer (APML) to be used in diffraction grating modeling. With a properly tailored co-ordinate stretching depending both on the incident field and on grating parameters, the APML may ...
Nicolet, André, Vial, Benjamin, Commandre, Mireille, Tisserand, Stephane, Zolla, Frederic   +4 more
core   +1 more source

Two-stage perfectly matched layer for the analysis of plasmonic structures

, 2010
We present an improved perfectly matched layer (PML) for the analysis of plasmonic structures, based on the manipulation of PML parameters. Two different types of stretched coordinate PML are employed sequentially in the spatial domain: a real stretched ...
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Extremely low loss optical waveguide for terahertz pulse guidance

Results in Physics, 2019
This study proposed a dielectric terahertz (THz) D-shape core based photonic crystal fiber (PCF) with very low level of effective material loss (EML) for efficient THz pulse propagation.
Bikash Kumar Paul, Touhid Bhuiyan, Lway Faisal Abdulrazak, Kaushik Sarker, Md. Maruf Hassan, S. Shariful, Kawsar Ahmed   +6 more
doaj   +1 more source

Perfectly matched layers in the thin layer method [PDF]

, 2011
This paper explores the coupling of the perfectly matched layer technique (PML) with the thin layer method (TLM), the combination of which allows making highly efficient and accurate simulations of layered half-spaces of infinite depth subjected to ...
Kausel, Eduardo, Park, Joonsang, de Oliveira Barbosa, Joao Manuel, Kausel, Eduardo A., Barbosa, Joao Manuel de Oliveira   +4 more
core   +1 more source

Simplified Tunnel–Soil Model Based on Thin-Layer Method–Volume Method–Perfectly Matched Layer Method

Applied Sciences
In order to analyze the ground vibration responses induced by the dynamic loads in a tunnel, this paper proposes a new simplified tunnel–soil model.
Yu Wang, Mengfan Zhou, Yanmei Cao, Xiaoxi Wang, Zhe Li, Meng Ma   +5 more
doaj   +1 more source

A High-Order Time and Space Formulation of the Unsplit Perfectly Matched Layer for the Seismic Wave Equation Using Auxiliary Differential Equations (ADE-PML)

Computer Modeling in Engineering & Sciences, 2010
Unsplit convolutional perfectly matched layers (CPML) for the velocity and stress formulation of the seismic wave equation are classically computed based on a second-order finite-difference time scheme. However it is often of interest to increase the order of the time-stepping scheme in order to increase the accuracy of the algorithm. This is important
Martin, Roland, Komatitsch, Dimitri, Gedney, Stephen D., Bruthiaux, Emilien   +3 more
openaire   +1 more source

High-Precision Simulation of Discontinuous Galerkin Algorithm in Dispersive Media for 3-D Ground-Penetrating Radar Based on CFS-PML

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Ground-penetrating radar (GPR) has emerged as a critical tool for subsurface characterization due to its three-dimensional imaging capabilities in complex geological environments. Nevertheless, existing numerical methods for modeling electromagnetic wave
Shuo Liu, Deshan Feng, Xun Wang
doaj   +1 more source

Analysis and Application of Perfectly Matched Layer Absorbing Boundary Conditions for Computational Aeroacoustics

, 2008
The Perfectly Matched Layer (PML) was originally proposed by Berenger as an absorbing boundary condition for Maxwell\u27s equations in 1994 and is still used extensively in the field of electromagnetics.
Parrish, Sarah Anne
core   +1 more source

Application of the perfectly matched layer in 2.5D marine controlled-source electromagnetic modeling

, 2017
Highlights • The complex frequency-shifted perfectly matched layer (CFS-PML) in stretching Cartesian coordinates is applied to 2.5D frequency-domain marine CSEM modeling. • This PML modeling algorithm presented is approved to be fast and stable.
Li, Gang, Gang Li, Bo Han, Han, Bo
core   +1 more source

Perfectly matched layer for acoustic waveguide modeling -- benchmark calculations and perturbation analysis

, 2008
The perfectly matched layer (PML) is a widely used technique for truncating unbounded domains in numerical simulations of wave propagation problems. In this paper, the PML technique is used with a standard one-way model to solve a benchmark problem for ...
Ya Yan Lu, et al.
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