Results 11 to 20 of about 744 (154)
An Efficient Laguerre-Based FDTD Iterative Algorithm in 3D Cylindrical Coordinate System
International Journal of Antennas and Propagation, 2019 Here an efficient Laguerre-based finite-difference time-domain iterative algorithm is proposed. Different from the previously developed iterative procedure used in the efficient FDTD algorithm, a new perturbation term combined with the Gauss–Seidel ...
Da-Wei Zhu +4 more
doaj +2 more sources
ADI-MRTD Algorithm for Periodic Structures Analysis
International Journal of Antennas and Propagation, 2018 In this paper, a novel algorithm based on the alternating direction implicit (ADI) multiresolution time-domain (MRTD) method for periodic structure simulation is proposed.
Xiaohua Dong +4 more
doaj +2 more sources
A three-point compact LOD-FDTD method for solving the 2D scalar wave equation [PDF]
Microwave and Optical Technology Letters, Volume 66, Issue 5, May 2024.This letter introduces an unconditionally stable finite-difference time-domain (FDTD) method, based on the locally one-dimensional (LOD)technique, for the solution of the two-dimensional scalar wave equation(WE) in homogeneous media.
Grande Sáez, Ana María +1 more
core +2 more sources
Linear and Nonlinear Optical Properties of Well‐Defined and Disordered Plasmonic Systems: A Review
Advanced Optical Materials, Volume 11, Issue 5, March 3, 2023., 2023 Optical activity of 3D disordered plasmonic systems exhibits multiple hotspots over a broad optical range at subwavelength distances, very different from well‐defined plasmonic systems. These metallic networks are robust, and have manifold sizes of pores enabling guest materials permeability, and therefore have the potential to function as an ...
Racheli Ron, Tchiya Zar, Adi Salomon
wiley +1 more source
Frequency‐dependent finite‐difference time‐domain method based on iterated Crank–Nicolson scheme
Electronics Letters, Volume 59, Issue 1, January 2023., 2023 The transmission spectra are calculated using the proposed FDTD method based on the iterated Crank‐ Nicolson scheme. The result obtained from the proposed method is in perfect agreement with that obtained from the traditional explicit FDTD method. Abstract The finite‐difference time‐domain (FDTD) method based on the iterated Crank–Nicolson (ICN) scheme
Jun Shibayama +3 more
wiley +1 more source
An Iterative High‐Accuracy ADI Method for the 3D Parabolic Equation
International Journal of Antennas and Propagation, Volume 2023, Issue 1, 2023., 2023 The alternating direction implicit parabolic equation (ADI‐PE) method and the Crank–Nicolson parabolic equation (CN‐PE) method have been widely used for solving the 3D parabolic equation (3D‐PE) in radio wave propagation. The ADI‐PE method is more computationally efficient than the CN‐PE method.
Xiaoping Wu +4 more
wiley +1 more source
3‐D low numerical dispersion WLP‐FDTD method with artificial anisotropy parameters
Electronics Letters, Volume 58, Issue 5, Page 179-181, March 2022., 2022 Abstract Based on the weighted Laguerre polynomials (WLPs) and artificial anisotropic (AA) parameters, a 3‐D unconditionally stable finite‐difference time‐domain (FDTD) electromagnetic simulation approach is proposed. The implementation of WLPs in time domain effectively eliminates the time step and AA parameters in spatial difference, resulting in ...
Gui‐Ying Liu +4 more
wiley +1 more source
Space‐ and time‐resolved second harmonic spectroscopy of coupled plasmonic nanocavities
Nanophotonics, Volume 10, Issue 14, Page 3635-3645, October 2021., 2021 Abstract Localized surface plasmon resonances of individual sub‐wavelength cavities milled in metallic films can couple to each other to form a collective behavior. This coupling leads to a delocalization of the plasmon field at the film surface and drastically alters both the linear and nonlinear optical properties of the sample. In periodic arrays of
Adi Salomon +6 more
wiley +1 more source
IET Microwaves, Antennas &Propagation, Volume 15, Issue 7, Page 691-703, 10 June 2021., 2021 Abstract To obtain high accuracy and efficiency in the simulations, an optimum time step should be taken in finite‐difference time‐domain (FDTD) methods. The authors investigated how time steps impact on numerical dispersion of two FDTD methods including the FDTD(2,2) method and the FDTD(2,4) method. Through rigorously analytical and numerical analysis,
Yu Cheng +3 more
wiley +1 more source
International Journal of Antennas and Propagation, Volume 2021, Issue 1, 2021., 2021 By incorporating the higher‐order concept with the perfectly matched later (PML) scheme, unconditionally stable approximate Crank–Nicolson algorithm is proposed for plasma simulation in open region problems. More precisely, the proposed implementation is based on the CN Direct‐Splitting (CNDS) procedure for the finite‐difference time‐domain (FDTD ...
Liqiang Niu +5 more
wiley +1 more source