Results 51 to 60 of about 2,688 (224)
Optical Skyrmions with Tunable or Reconfigurable Topology Using Spin‐Decoupled Metaoptics
Laser &Photonics Reviews, EarlyView.The work introduces advanced optical elements capable of generating and dynamically reconfiguring complex light patterns known as optical skyrmions. By precisely shaping light polarization at the nanoscale, a single engineered metasurface can generate and manipulate robust and tunable polarization textures in an efficient and scalable way.
Andrea Vogliardi +5 more
wiley +1 more source
An improved perfectly matched layer in the eigenmode expansion technique
, 2008 When employing the eigenmode expansion technique (EET), parasitic reflections at the boundary of the computational domain can be suppressed by introducing a perfectly matched layer (PML).
Gregersen, Niels, Mørk, Jesper
core +1 more source
Design and simulation of Surface Plasmon Resonance based Solid Core Photonic crystal fiber biosensor
Journal of Kufa-Physics, 2021 The purpose of a surface plasmon resonance (SPR)-based photonic crystal fiber (PCF) biosensor is to achieve a maximal sensitivity for the detection of unknown analytes. Outside of the PCF, the chemically stable and inert plasmonic material gold (Au) was
Ahmed H. Hadi +2 more
doaj +1 more source
Rigorous Electromagnetic Quasinormal‐Mode Method Made Easy for Users
Laser &Photonics Reviews, EarlyView.We present a method that combines numerical techniques with accurate approximations to enable simple and ultrafast computations of the scattered field based on quasinormal modes expansions. The method is made available in the open‐source package MANlite implemented within COMSOL.
Tong Wu, Philippe Lalanne
wiley +1 more source
Multicenter perfectly matched layer implementation for finite element mesh truncation
, 2007 We present the multicenter perfectly matched layer (PML) technique, which is an easy and practical conformal PML implementation, obtained by the complex coordinate stretching, to the problem of mesh truncation in the finite element method.
Ozgun, Ozlem, Kuzuoğlu, Mustafa
core +1 more source
International Journal of Antennas and Propagation, 2017 The complex frequency shifted (CFS) perfectly matched layer (PML) is proposed for the two-dimensional auxiliary differential equation (ADE) finite-difference time-domain (FDTD) method combined with Associated Hermite (AH) orthogonal functions.
Feng Jiang +4 more
doaj +1 more source
Responsive Phase Gradient Metasurface for Laser Stealth and Dynamic Thermal Camouflage
Laser &Photonics Reviews, EarlyView.The graphical abstract depicts a phase‐gradient metasurface enabling directional scattering and emissivity‐controlled thermal radiation. The engineered phase profile redistributes the reflected optical momentum, suppressing specular reflection and generating non‐specular scattering.
Zhihao Yuan +7 more
wiley +1 more source
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
Efficient Parallel FDTD Method Based on Non-Uniform Conformal Mesh
Applied SciencesThe finite-difference time-domain (FDTD) method is a versatile electromagnetic simulation technique, widely used for solving various broadband problems.
Kaihui Liu +8 more
doaj +1 more source
Revealing the Resonant Physics of Open Photonic Time Crystals
Laser &Photonics Reviews, EarlyView.ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero +5 more
wiley +1 more source