Results 91 to 100 of about 24,972 (270)
Error between unconditionally stable FDTD methods and conventional FDTD method
Electronics Letters, 2006 Both the ADI-FDTD method and the CN-FDTD method can be viewed as approximate factorisation of the conventional FDTD scheme, so the error between these methods and the conventional FDTD method is obtained. It is shown that the error is associated with the time step size, the permittivity and the permeability of the medium, and the spatial variation rate
J. Chen, J. Wang
openaire +1 more source
Layer‐Dependent Phonon Polaritons in hBN Resolved by Photo‐Induced Force Spectroscopy
Advanced Science, EarlyView.Layer‐dependent phonon polariton resonances in hexagonal boron nitride are systematically investigated using photo‐induced force microscopy. The in‐plane resonance exhibits a blueshift, while the out‐of‐plane resonance shows a redshift with increasing thickness. These results establish layer number as a key parameter for tuning polaritonic responses in
Amin Hajarian, Jiwoo Seo, SungWoo Nam
wiley +1 more source
Design and fabrication of a mid infra-red photonic crystal defect laser in indium antimonide
, 2008 This paper presents 2D FDTD modelling and prototype fabrication of a mid-infrared photonic crystal defect laser.
Rarity, John +22 more
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Ag Nanowire‐Integrated MoS2/ZnO Heterojunctions for Highly Efficient Photogenerated Charge Transfer
Advanced Electronic Materials, Volume 11, Issue 6, May 2025.A versatile strategy is reported for fabricating multi‐dimensional heterojunctions with significantly improved charge transfer capability. By integrating Ag nanowires with a MoS2/ZnO heterojunction, a fourfold increase in surface photovoltage is achieved, reaching 200 mV under visible light illumination.
Anh Thi Nguyen +8 more
wiley +1 more source
Iterative approach for photonic crystal devices design
Физика волновых процессов и радиотехнические системыBackground. An approach to the design of photonic crystal (PhC) devices is proposed, which differs from the known general-purpose optimization methods (for example, a genetic algorithm or gradient procedures) by using information about diffraction ...
Pavel V. Mokshin +2 more
doaj +1 more source
IEEE Access, 2018 Based on the explicit finite-difference time-domain (FDTD) and implicit Crank–Nicolson (CN) FDTD methods, this paper presents a hybrid sub-gridded scheme whose time step size depends on the coarse grid size for numerically simulating the 3-D ...
Xiao-Kun Wei, Wei Shao, Xiao-Hua Wang
doaj +1 more source
Smart Exploration of Perovskite Photovoltaics: From AI Driven Discovery to Autonomous Laboratories
Advanced Energy Materials, EarlyView.In this review, we summarize the fundamentals of AI in automated materials science, and review AI applications in perovskite solar cells. Then, we sum up recent progress in AI‐guided manufacturing optimization, and highlight AI‐driven high‐throughput and autonomous laboratories.
Wenning Chen +4 more
wiley +1 more source
Redefining Crystalline Silicon: Unlocking New Horizons in Transparent and Flexible Photovoltaics
Advanced Energy Materials, EarlyView.Crystalline silicon is presented as a platform for transparent and flexible photovoltaics. This review article outlines design principles for optical strategies to fabricate transparent silicon solar cells, mechanical strategies that mitigate silicon brittleness, and emerging concepts such as singlet‐fission spectral conversion and tandem architectures,
Kangmin Lee
wiley +1 more source
Компьютерная оптикаIn this work, the propagation of optical vortices with circular, radial, and azimuthal polarization through subwavelength ring gratings with standard and GRIN substrates using a finite difference time domain method is numerically simulated.
D.A. Savelyev
doaj +1 more source
The Non-Standard FDTD Method in Lossy Media [PDF]
, 2002 FDTD法の位相誤差を縮小した解析法にNon-Standard FDTD(NS-FDTD)法がある.本論文ではNS-FDTD法による損失媒質解析のため,損失を考慮した修正関数を用いた新たなNS-FDTD差分式を提案した.その伝搬特性を明らかにするため,損失を考慮したより一般的なNS-FDTD法の数値分散式及び安定条件を導出した.伝搬特性比較のため,損失媒質中でのFDTD法の数値分散式及び安定条件も新たに求めた.更に,伝搬シミュレーション結果より本導出の数値分散式と安定条件の妥当性を示した.その結果 ...
千藤, 雄樹 +3 more
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