Results 101 to 110 of about 2,196 (202)
Validation of FDTD-2D for high-Q resonances description [PDF]
Proc. Int. Workshop on Optical Waveguide Theory and Numerical
Modelling (OWTNM-07), Copenhagen (Denmark), p. 18, April 2007, 2010 The objective of the study is to assess the accuracy of a standard FDTD code in description of high-Q resonances such as whispering-gallery-mode (WGM) ones excited in circular dielectric resonators. To achieve the goal, we consider circular resonators excited by line currents and extract the data on FDTD accuracy from comparisons between the FDTD ...
arxiv
Finite Difference Time-Domain Modelling of Metamaterials: GPU Implementation of Cylindrical Cloak
Advanced Electromagnetics, 2013 Finite difference time-domain (FDTD) technique can be used to model metamaterials by treating them as dispersive material. Drude or Lorentz model can be incorporated into the standard FDTD algorithm for modelling negative permittivity and permeability ...
A. Dawood
doaj +1 more source
Advanced Photonics Research, EarlyView.This work introduces a humidity‐modulated strategy to regulate the dynamic transition from quasi‐BICs to BICs based on the symmetry‐breaking in geometry and permittivity for the hybrid photonic‐plasmonic asymmetric gratings. It proves that it is a promising approach for dynamic regulating optical properties and applied in fabricating various micro ...
Ang Xu +8 more
wiley +1 more source
Advanced Photonics Research, EarlyView.Photonic resonances within a dielectric metasurface are investigated using photoelectron emission microscopy (PEEM) and finite‐difference time‐domain simulations. An electron inelastic mean free path of 35 ± 10 nm is extracted from comparisons between microscopy and simulations.
Andrew R. Kim +9 more
wiley +1 more source
Advanced Science, EarlyView.This groundbreaking research has advanced the utilization of quantum rods (QRs) for the emission of linearly polarized light, resulting in exceptional color saturation and enhanced display efficiency. The developed filter demonstrates a polarization degree of up to 0.67 and an impressive ambient contrast ratio (ACR) of 263:1, setting the stage for ...
Jianxin Song +12 more
wiley +1 more source
Journal of Thermal Science and Technology, 2013 Aim of this study is to propose a numerical model and to calculate ultrashort pulse laser light propagation by using Finite-Difference Time Domain (FDTD).
Yoshihiko AKAMINE +2 more
doaj +1 more source
Advanced Science, EarlyView.This study demonstrates a plasmonic hot carrier device capable of extracting both types of hot carriers simultaneously using a lateral Si p–n junction diode coupled to Ag nanoprisms. The experimental and numerical results jointly reveal precise control of the generation and injection of plasmonic hot carriers, stemming from differing injection ...
Yujin Park +7 more
wiley +1 more source
Silicon Carbide Photonic Crystal Photoelectrode
Advanced Science, EarlyView.A 3C‐SiC photoelectrode with a slanted parabolic pore photonic crystal architecture enhances photogeneration for efficient photoelectrochemical water splitting through the remarkable light‐trapping capabilities of photonic crystal slow‐light modes.
Xiwen Zhang, Sajeev John
wiley +1 more source
Efficient electromagnetic analysis of multi‐layer and multi‐scale periodic/quasi‐periodic structures
IET Microwaves, Antennas &Propagation, Volume 17, Issue 1, Page 1-12, January 2023., 2023 First, this method realises that the quasi‐periodic structure is extended from one layer to multiple layers. At the same time, the unit cells of the structure are no longer the conventional square lattice, and the size of different types of unit cells cannot be required for the same.
Pengfei Wen, Xingjun Wang
wiley +1 more source
FDTD schemes for Maxwell's equations with embedded perfect electric conductors based on the correction function method [PDF]
arXiv, 2019 In this work, we propose staggered FDTD schemes based on the correction function method (CFM) to discretize Maxwell's equations with embedded perfect electric conductor (PEC) boundary conditions. The CFM uses a minimization procedure to compute a correction to a given FD scheme in the vicinity of the embedded boundary to retain its order.
arxiv