Results 101 to 110 of about 7,310 (213)
IEEE Open Journal of Antennas and PropagationIn this paper, we proposed and implemented a one-step leapfrog fundamental locally one-dimensional body of revolution finite-difference time-domain (FLOD BOR-FDTD) method to address the problem of electromagnetic wave propagation in axisymmetric Drude ...
Chao Li +5 more
doaj +1 more source
On the Stability of the RK-FDTD Method for Graphene Modeling
IEEE Transactions on Antennas and PropagationThe Runge Kutta finite-difference time-domain (RK-FDTD) method is an extension of the conventional finite-difference time-domain (FDTD) technique to include graphene sheets. According to this method, the relationship between the current density and the electric field for graphene is discretized by applying an explicit second-order Runge-Kutta (RK ...
José A. Pereda, Ana Grande
openaire +2 more sources
Modeling of Elves Doublets Based on Variations of the Lightning Return Stroke Current
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract Elves are transient luminous events appearing above thunderclouds. They are produced by high peak current lightning events. They occasionally appear as doublets or in general as multiplets. We model elves doublets by setting the temporal and spatial variations of the return stroke current amplitude and we show that our modeling results are ...
Petr Kašpar +2 more
wiley +1 more source
Dynamic Holographic Display With Multiplexed Dielectric Metasurfaces
Nanophotonics, Volume 15, Issue 12, 25 June 2026.Based on multiplexed metasurfaces, we show hybrid multiplexing of polarization, wavelength, and orbital angular momentum can be applied for dynamic tuning. Our strategy presents a highly compact and efficient solution for high‐capacity, multi‐dimensional holography, with promising applications in advanced displays, data storage, optical encryption, and
Yu Liu +8 more
wiley +1 more source
Performance of parallel FDTD method for shared- and distributed-memory architectures: Application tobioelectromagnetics. [PDF]
PLoS One, 2020 Ruiz-Cabello N M +5 more
europepmc +1 more source
Toward Reliable Spectroscopic Analysis of Reaction Kinetics in Polaritonic Chemistry
Nanophotonics, Volume 15, Issue 11, 13 June 2026.Vibrational strong coupling has been reported to modify chemical reaction rates, yet its mechanism remains unresolved. We expose pitfalls in UV/Vis‐based kinetic analyses and emphasize the need for standardized cavity protocols. ABSTRACT Recent reports suggest that chemical reaction rates can change inside an optical cavity.
Robrecht M. A. Vergauwe +2 more
wiley +1 more source
Chiral Light–Matter Interaction for Controlling Nanoplasmonic Fields
Nanophotonics, Volume 15, Issue 11, 13 June 2026.This paper demonstrates plasmonic circular dichroism using gold nanoparticle dimers that exhibit high near‐field contrast under left‐ and right‐circularly polarized illumination. SNOM mapping reveals that the dichroic behavior of the dimers transforms hot spots into cold spots with full optical control. Additionally, the eigenmode excitations and their
Lázár Tóth +5 more
wiley +1 more source
A Colloidal Quantum Dot Thermistor and Bolometer
Advanced Materials, Volume 38, Issue 32, 8 June 2026.This work introduces colloidal quantum dot thermistors employing a potential barrier structure to tune the activation energy of transport and hence the temperature coefficient of resistance (TCR). Upon integration with plasmonic absorbers, the CQD‐based bolometer device enables room‐temperature wavelength‐selective photodetection across the mid‐ to ...
Gaurav Kumar +7 more
wiley +1 more source
Advanced Optical Materials, Volume 14, Issue 21, 5 June 2026.Hexagonal arrays of silicon nanodisks are proposed to control 1.5 µm emission of Er3+ ions. Toroidal dipole resonance of the nanodisk array generates accessible magnetic hot spots at the surface, leading to enhanced and highly directional magnetic dipole emission along the surface‐normal direction via the magnetic Purcell effect.
Keisuke Moriasa +3 more
wiley +1 more source
k‐Selective Electrical‐to‐Magnon Transduction with Finite‐Element‐Resolved Sub‐Micron Nanoantennas
Advanced Physics Research, Volume 5, Issue 6, June 2026.We introduce a coupled finite‐element‐finite‐difference framework that links impedance‐matched nanoantenna geometries to propagating spin‐wave dynamics, capturing skin effects, proximity effects, and taper leakage beyond uniform‐current models. Applied to coplanar‐waveguide and stripline nanoantennas on yttrium‐iron‐garnet, the simulations achieve ...
Andreas Höfinger +11 more
wiley +1 more source