Results 61 to 70 of about 24,972 (270)
An Artificial Anisotropy Four-Step HIE-FDTD Method With Lower Numerical Dispersion Error
IEEE Access, 2020 In this article, by introducing artificial anisotropic (AA) parameters in the four-step hybrid implicit-explicit finite-difference time domain (HIE-FDTD) method, an AA four-step HIE-FDTD method is proposed, which can reduce the numerical dispersion error
Yong-Dan Kong +3 more
doaj +1 more source
Applied Sciences, 2023 In this paper, the finite-difference time-domain (FDTD) method is derived for electromagnetic simulations in media described by the time-fractional (TF) constitutive relations.
Piotr Pietruszka +2 more
doaj +1 more source
Advanced Science, EarlyView.Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel +3 more
wiley +1 more source
An overview on plasmon-enhanced photoluminescence via metallic nanoantennas
NanophotonicsIn the realm of nanotechnology, the integration of quantum emitters with plasmonic nanostructures has emerged as an innovative pathway for applications in quantum technologies, sensing, and imaging.
Montaño-Priede José Luis +4 more
doaj +1 more source
A comparison of FDTD-PML with TDIE
IEEE Transactions on Antennas and Propagation, 2002 Presented in this paper, is a comparison of two popular numerical techniques, viz. the finite-difference time-domain method and the time domain integral equation method, for electromagnetic-scattering problems. The comparison is made via standard canonical shapes, a cube, and a sphere, to address the factors affecting accuracy, efficiency, and the ...
Sachdeva, Niraj +2 more
openaire +2 more sources
Interference and diffraction analysis of holographic gratings using the Finite-Difference Time-Domain method [PDF]
, 2010 The Finite-Difference Time-Domain method (FDTD) is based on a time-marching algorithm that has proven accurate in predicting microwave scattering from complicated objects.
Pérez Molina, Manuel +4 more
core
Quantifying numerical dispersion in non-orthogonal FDTD meshes
, 2002 Numerical electromagnetic models such as FDTD are widely used for the design and analysis of structures, including antennas. Numerical dispersion is one of the main sources of error that degrade the accuracy of the results-for each structure of interest,
Nilavalan, R, Railton, CJ, Craddock, IJ
core +1 more source
SERS Facemask for Rapid and Portable Sensing Mycobacterium Tuberculosis Antigens for TB Screening
Advanced Science, EarlyView.Our study introduced an Au─Ag embedded covalent organic framework (U@COF) ‐mediated facemask for sensing TB antigen ESAT‐6/CFP‐10 complex in clinical droplet samples toward TB screening. Practical analysis of clinical samples demonstrated the availability of our facemask, which is capable of identifying the TB subjects (N = 17) from healthy candidates (
Lingzhi Chen +20 more
wiley +1 more source
Advanced Science, EarlyView.Acoustic plasmons in Ti3C2Tx MXene strongly compress infrared electromagnetic fields and enhance light–matter interactions at the nanoscale. This platform couples broadband plasmon excitations with molecular vibrations, enabling simultaneous sensing of high‐ and low‐frequency vibrational modes in ultrathin PMMA and graphene oxide films, and extending ...
Changhoon Park +7 more
wiley +1 more source
FDTD modelling of reverberation chamber
Electronics Letters, 2005 The finite-difference time-domain (FDTD) method is applied to the simulation of a reverberation chamber. The real losses of the reverberation chamber are taken into account in a post-treatment process. The predicted results are compared with measured data and good agreement is reported.
Bonnet, Pierre +3 more
openaire +3 more sources