Results 131 to 140 of about 24,972 (270)

Metal boundary modelling for non-orthogonal FDTD

, 2007
This contribution looks into a technique to reduce numerical errors when employing non-orthogonal mesh in modelling curved structures.
Nilavalan, R, Hadjinicolaou, MG, Craddock, IJ, Hadjinicolaou, M   +3 more
core  

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, J. Jussi Toppari, Gerrit Groenhof   +2 more
wiley   +1 more source

A Treatment of Complex Permittivity in the Complex Nonstandard FDTD Method [PDF]

, 2004
本論文では複素誘電率を扱うための2次元Complex Nonstandard FDTD (CNS-FDTD)差分式を提案した.また,その伝搬特性を示す数値分散式及び安定条件を導出した.数値的検討から,本提案の差分式によるCNS-FDTD法は複素誘電率をもつ媒質の解析にも有効で,通常のFDTD法よりも高精度なことを示す.journal ...
Kashiwa, Tatsuya, 大谷, 忠生, 柏, 達也   +2 more
core  

Single‐Photon Emission From TMDCs through Strong Coupling to EQ Plasmon Modes of an Au Metasurface

Nanophotonics, Volume 15, Issue 11, 13 June 2026.
Compact, deterministic solid‐state single‐photon sources that operate at room temperature and integrate with planar nanophotonics are essential for the development of scalable quantum photonic technologies. This work presents a TMDC monolayer strongly coupled to a gold (Au) metasurface featuring an electric quadrupole mode, enabling high‐purity single ...
Andergachew Mekonnen Berhe, Haroldo T. Hattori, Andrey E. Miroshnichenko   +2 more
wiley   +1 more source

Hybridization of FDTD and Device Behavioral-Modeling Techniques [PDF]

, 2003
Stievano, Igor Simone, Grivet-Talocia, S., GRIVET TALOCIA, STEFANO, Canavero, Flavio   +3 more
core   +1 more source

Radiation characteristics of corner reflector antennas.

, 1998
PhDThis thesis presents a study of the radiation characteristics of corner reflector antennas. The influence of the design parameters on the radiation characteristics are assessed using an analytical method and the Finite Difference Time Domain (FDTD)
Sterr, U.
core  

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, Judit Budai, Zsuzsanna Márton, Péter Rácz, Péter Dombi, Zsuzsanna Pápa   +5 more
wiley   +1 more source

High‐Index, Low‐Loss Optical Material Platforms for Ultra‐Broadband Ultraviolet‐to‐Visible Achromatic Metalenses

Advanced Functional Materials, Volume 36, Issue 49, 18 June 2026.
An integrated material platform combining engineered SiNx thin films and printable ZrO2 nanoparticle‐embedded resin enables broadband achromatic metalenses from the ultraviolet to visible range. The demonstrated meta‐optics achieve near‐diffraction‐limited focusing with minimal chromatic aberration.
Hyunjung Kang, Dongmin Jeon, Eunji Lee, Junsuk Rho   +3 more
wiley   +1 more source

Three-dimensional numerical simulation and experimental validation of airborne ground-penetrating radar based on CNCS-FDTD method under undulating terrain conditions

Scientific Reports
Traditional Finite Difference Time Domain (FDTD) approaches face challenges with increased computational demands and errors as terrain complexity and flight altitude rising.
Yuelong Chi, Lifeng Mao, Xuben Wang, Su Pang, Yi Yang   +4 more
doaj   +1 more source