Results 41 to 50 of about 30,411 (268)
Ion Concentration and Voltage Imaging With Fluorescent Nanodiamonds
Advanced Materials, EarlyView.We demonstrate reversible switching between the fluorescent NV0 and the dark NV+ state, in sub‐30 nm FNDs via surface oxidation and hydrogenation, respectively. In an electrochemical cell, we show that the fluorescence from hydrogenated particles enables all‐optical imaging of voltages and ion concentrations at the micrometer scale.
Patrick Voorhoeve +8 more
wiley +1 more source
The HIE-FDTD Method for Simulating Dispersion Media Represented by Drude, Debye, and Lorentz Models
Nanomaterials, 2023 The hybrid implicit–explicit finite-difference time-domain (HIE-FDTD) method is a weakly conditionally stable finite-difference time-domain (FDTD) method that has attracted much attention in recent years. However due to the dispersion media such as water,
Juan Chen, Chunhui Mou
doaj +1 more source
A Novel Piecewise Linear Recursive Convolution Approach for Dispersive Media Using the Finite-Difference Time-Domain Method [PDF]
, 2014 Two novel methods for implementing recursively the convolution betweenthe electric field and a time dependent electric susceptibility function inthe finite-difference time domain (FDTD) method are presented.
Giannakis, Iraklis +2 more
core +1 more source
Advanced Materials, EarlyView.A hierarchical flexible ceramic nanofiber membrane integrates a La‐stabilized ZrO2 scaffold with superhydrophobic UiO‐66‐NH2/CdS heterojunctions. The gas–liquid–solid interfacial architecture sustains vapor‐selective desalination, visible‐light charge separation, and rapid H2 extraction, enabling simultaneous freshwater production and photocatalytic ...
Pengfei Lin +9 more
wiley +1 more source
A rotated subgrid for 3D FDTD [PDF]
2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2015 In most published work on subgrids for the FDTD method, Cartesian subgrids are proposed which are in the same orientation as the main grid. However there is considerable benefit to allowing for the subgrid to be rotated. In this work, a novel method for introducing a rotated subgrid into the mesh is presented and some preliminary results are given.
openaire +3 more sources
Journal of Thermal Science and Technology, 2013 We present the numerical simulation, using the finite difference time domain (FDTD) method, of the radiative heat transfer between two thin SiC slabs. We aim to explore the ability of the FDTD method to reproduce the analytical results for the Surface ...
Alejandro DATAS +2 more
doaj +1 more source
FDTD channel modelling with time domain huygens' technique [PDF]
, 2011 Much interest is currently being shown in mm-wave high data rate, short range communication links. The modelling of these types of links presents considerable challenges.
Paul, DL, Dumanli, S, Railton, CJ
core
Large-scale FDTD computation for computational electromagnetics [PDF]
, 2004 Our recent studies related to the large-scale FDTD computation for computational electromagnetics are presented as an activity report. In this paper, high accuracy FDTD methods and the FDTD parallel computaion are described.
Kashiwa, Tatsuya
core +1 more source
Strong Coupling in Bulk Nanoplasmonic Nanoplatelet Perovskite Scintillators
Advanced Materials, EarlyView.A bulk scintillating nanocomposite is engineered from CsPbBr3 nanoplatelets and Ag nanocubes to support exciton–plasmon strong coupling under X‐ray excitation. The resulting hybrid polaritonic states appear directly in radioluminescence, opening a route toward polariton‐enabled scintillator design beyond conventional Purcell enhancement.
Michal Makowski +13 more
wiley +1 more source
IET Microwaves, Antennas & Propagation, 2021 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(
Yu Cheng +3 more
doaj +1 more source