Results 71 to 80 of about 2,688 (224)
Photonic Sensors, 2017 In this paper, a hexagonal shape photonic crystal fiber (H-PCF) has been proposed as a gas sensor of which both micro-structured core and cladding are organized by circular air cavities.
Md. Ibadul Islam +7 more
doaj +1 more source
Brillouin Zone Folding‐Driven Topological Band Flips Based on BICs via Twisted Photonic Crystals
Nanophotonics, Volume 15, Issue 11, 13 June 2026.Brillouin zone folding (BZF)‐driven topological band flips are demonstrated via twisted photonic crystals (PhCs) incorporating bound states in the continuum (BICs). Twist perturbation generates three new bands, each linked to either a BIC or a guided‐mode resonance (GMR).
Guanhua Yang +4 more
wiley +1 more source
Hybrid asynchronous isogeometric Perfectly Matched Layer for transient elastodynamics
, 2023 International audienceThis paper presents an isogeometric formulation (IGA) of the Perfectly Matched Layer (PML) for two-dimensional time-domain elastodynamics in unbounded media.
Elguedj, Thomas +2 more
core +1 more source
MathematicsIn this study, the nonlocal theory of peridynamics (PD) is adopted to simulate elastic wave propagation in an infinite plate. To realistically represent an unbounded domain and suppress artificial wave reflections at computational boundaries, the ...
Reza Alebrahim, Riccardo Panciroli
doaj +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
Simulating ultracold matter: horizons and slow light
, 2007 This thesis explores the links between different ways of modelling the physical world. Finite difference numerical simulations may be used to encode the behaviour of physical systems, allowing us to gain insight into their workings and even to predict ...
Farrell, Conor, Conor Farrell
core
, 2007 The perfectly matched layer (PML) is a widely used technique for truncating unbounded domains in numerical simulations of wave propagation problems. In this paper, the PML technique is used with a standard one-way model to solve a benchmark problem for ...
Ya Yan Lu, Jianxin Zhu
core +1 more source
Advanced Optical Materials, Volume 14, Issue 23, 19 June 2026.Structural color generation is an emerging field for digital display and printing applications. This report presents a novel truncated‐cone design and the first use of GaP sandwiched between two layers of TiO2, demonstrating ultra‐bright, tunable colors with a record color gamut.
Md Rumon Miah +2 more
wiley +1 more source
Perfectly Matched Layer (PML) for Transient Wave Propagation in a Moving Frame of Reference [PDF]
, 2013 In relation to the development of a Rolling Wheel Deflectometer (RWD), which is a non-destructive testing device for measuring pavement deflections, a finite element model for obtaining the soil/pavement response is developed.
Madsen, Stine Skov +2 more
core
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