Read e-book online Advances in FDTD Computational Electrodynamics: Photonics PDF

By Allen Taflove, Steven G. Johnson, Ardavan Oskooi

ISBN-10: 1608071707

ISBN-13: 9781608071708

Advances in photonics and nanotechnology have the aptitude to revolutionize humanity s skill to
communicate and compute. To pursue those advances, it really is obligatory to appreciate and properly
model interactions of sunshine with fabrics similar to silicon and gold on the nanoscale, i.e., the span of
a few tens of atoms laid part by means of aspect. those interactions are ruled via the fundamental
Maxwell s equations of classical electrodynamics, supplemented through quantum electrodynamics.

This publication provides the present state of the art in formulating and enforcing computational versions of those interactions. Maxwell s equations are solved utilizing the finite-difference time-domain (FDTD) strategy, pioneered through the senior editor, whose past Artech books during this quarter are one of the most sensible ten most-cited within the historical past of engineering. you find crucial advances in all components of FDTD and PSTD computational modeling of electromagnetic wave interactions.

This state of the art source is helping you recognize the newest advancements in computational modeling of nanoscale optical microscopy and microchip lithography. you furthermore may discover state of the art info in modeling nanoscale plasmonics, together with nonlocal dielectric capabilities, molecular interactions, and multi-level semiconductor achieve. different serious themes contain nanoscale biophotonics, in particular for detecting early-stage cancers, and quantum vacuum, together with the Casimir influence and blackbody radiation.

Contents: Subpixel Smoothing of Curved fabric Surfaces. Wave resource stipulations and native Density of States. completely Matched Layers and Adiabatic Absorbers. Plasmonics. Resonant machine Modeling and layout. Metamaterials and adverse Refraction. Transformation Optics. Meep (MIT FDTD unfastened Software). Biophotonics. Lithography. Computational Microscopy. Spatial ideas. Quantum Phenomena. Acceleration.

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Extra info for Advances in FDTD Computational Electrodynamics: Photonics and Nanotechnology

Example text

2a k =0, q>0 !!! 1 k y #DH (r) !! 1 #E (r) ! aJxq (r) ! 42a) k =0, q>0 +!! 1 (1! =!!! abDx Dy Ex"q (r) ! 2a # Dz Hxk (r) k =0, q>0 +!! 1 # Dx Hzk (r) ! 1 #E k y (r) ! 1 #E k =0, q>0 k z (r) (1! a bDx Dz Ex"q (r) ! a bDy Dz Ey"q (r) +!! 1 # Dy Hxk (r) k =0, q>0 !!! 1 # ! 1 # Dx Hyk (r) k =0, q>0 Ezk (r) ! a Jzq (r) ! 42c) 28 Advances in FDTD Computational Electrodynamics: Photonics and Nanotechnology (1 ! 42d) k =0, q>0 (1 ! =!!! 1 #E +!! 1 #E (r) ! 42e) (r) k =0, q>0 (1 ! =!!! 1 # !!! 1 # Ezk (r) Eyk (r) !

1 2, j, k $ 2 ! 1 2 ! 30) Chapter 1: Staggered-Grid Local-Fourier-Basis PSTD Technique $ 2 ! " x #t ' i = & )H &% 2 + " x #t )( y i n+1 Hy i, j+1 2, k n i, j+1 2, k $ 2! " #t ' y j+1 2 ) By ! & &% 2 + " x #t )( i Hz $ 2 ! 31) n i, j+1 2, k n i, j, k +1 2 $ 2 ! "z #t ' k +1 2 )B ! 7 TO FAR-FIELD TRANSFORMATION Just as in the FDTD method, the far-field response of an illuminated or radiating structure is obtained through the near-field to far-field transformation in SL-PSTD. The electric and magnetic field vectors in the far-field region are expressed as surface integrals of the equivalent electric and magnetic currents flowing tangentially along a six-sided rectangular virtual surface S that completely encloses the structure of interest.

The predicted differential cross-section of scattering is the most important physical quality in many applications. With the intention of setting up a Mie validation of the SL-PSTD technique, we implemented a model of plane-wave scattering by a single 2-µm-diameter polystyrene sphere surrounded by an infinite water region. 33, respectively. The surface of the sphere was approximated in the Cartesian SL-PSTD grid by simple staircasing using a grid-cell size of 98 nm, corresponding to 5 grid cells per dielectric wavelength λd in the polystyrene.

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Advances in FDTD Computational Electrodynamics: Photonics and Nanotechnology by Allen Taflove, Steven G. Johnson, Ardavan Oskooi


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