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Open AccessJournal ArticleDOI

Numerical analysis of a slit-groove diffraction problem

TLDR
In this paper, a comparison among several fully-vectorial methods applied to a basic scattering problem governed by the physics of the electromagnetic interaction between subwavelength apertures in a metal film is presented.
Abstract
We present a comparison among several fully-vectorial methods applied to a basic scattering problem governed by the physics of the electromagnetic interaction between subwavelength apertures in a metal film. The modelled structure represents a slit-groove scattering problem in a silver film deposited on a glass substrate. The benchmarked methods, all of which use in-house developed software, include a broad range of fully-vectorial approaches from finite-element methods, volume-integral methods, and finite-difference time domain methods, to various types of modal methods based on different expansion techniques.

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Plasmonics for solid-state lighting: enhanced excitation and directional emission of highly efficient light sources

TL;DR: In this article, a large improvement in solid-state lighting emission was achieved by coupling emitters with very high intrinsic quantum efficiency (QE) to collective plasmonic resonances in periodic arrays of aluminum nanoantennas.
Journal ArticleDOI

Strong Geometrical Dependence of the Absorption of Light in Arrays of Semiconductor Nanowires

TL;DR: It is demonstrated experimentally that arrays of base-tapered InP nanowires on top of an InP substrate form a broad band and omnidirectional absorbing medium and the first study of the influence of the geometry of the nanowire on the enhancement of the optical absorption by arrays is presented.
Journal ArticleDOI

A microscopic view of the electromagnetic properties of sub-wavelength metallic surfaces

TL;DR: In this article, the properties of the surface waves that are scattered by two-dimensional sub-wavelength indentations on metallic surfaces are reviewed, and two distinct waves are involved, a surface plasmon polariton (SPP) and a quasi-cylindrical wave (quasi-CW).
Journal ArticleDOI

Compact Antenna for Efficient and Unidirectional Launching and Decoupling of Surface Plasmons

TL;DR: The design and experimental observation of a highly efficient unidirectional surface plasmon launcher composed of eleven subwavelength grooves, each with a distinct depth and width is reported, which can efficiently convert SPPs into a highly directive light beam emanating perpendicularly to the sample.
Journal ArticleDOI

A microscopic view of the electromagnetic properties of sub-λ metallic surfaces

TL;DR: In this paper, the properties of the surface waves that are scattered by two-dimensional sub-λ indentations on metallic surfaces are reviewed, and two distinct waves are involved, a surface plasmon polariton (SPP) and a quasi-cylindrical wave (quasi-CW).
References
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Journal ArticleDOI

Numerical solution of initial boundary value problems involving maxwell's equations in isotropic media

Abstract: Maxwell's equations are replaced by a set of finite difference equations. It is shown that if one chooses the field points appropriately, the set of finite difference equations is applicable for a boundary condition involving perfectly conducting surfaces. An example is given of the scattering of an electromagnetic pulse by a perfectly conducting cylinder.
Book

Iterative Methods for Sparse Linear Systems

Yousef Saad
TL;DR: This chapter discusses methods related to the normal equations of linear algebra, and some of the techniques used in this chapter were derived from previous chapters of this book.
Book

Computational Electrodynamics: The Finite-Difference Time-Domain Method

Allen Taflove
TL;DR: This paper presents background history of space-grid time-domain techniques for Maxwell's equations scaling to very large problem sizes defense applications dual-use electromagnetics technology, and the proposed three-dimensional Yee algorithm for solving these equations.
Journal ArticleDOI

A perfectly matched layer for the absorption of electromagnetic waves

TL;DR: Numerical experiments and numerical comparisons show that the PML technique works better than the others in all cases; using it allows to obtain a higher accuracy in some problems and a release of computational requirements in some others.
Journal ArticleDOI

Formulation for stable and efficient implementation of the rigorous coupled-wave analysis of binary gratings

TL;DR: In this paper, the authors presented a stable and efficient numerical implementation of the analysis technique for one-dimensional binary gratings for both TE and TM polarization and for the general case of conical diffraction.
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