Tags: FDTD


Finite-difference time-domain (FDTD) is a computational technique for electrodynamics modeling. The FDTD method uses a grid-based differential time-domain numerical modeling method. Time-dependent Maxwell's equations (in partial differential form) are discretized into space and time partial derivatives. By stepping in time, the resulting finite-difference equations are solved for each spatial volume. First the electric field (E) vector components in each volume of space are solved at a given instant in time. The magnetic field (H) vector components in the same spatial volume are then solved at the next instant in time. The process is repeated until the desired transient or steady-state electromagnetic field behavior is fully evolved. For a more extensive description of FDTD see WIkipedia.

Learn more about FDTD and its uses from the resources on this site, listed below.

Online Presentations (1-6 of 6)

  1. ECE 595E Lecture 36: MEEP Tutorial II

    30 Apr 2013 | | Contributor(s):: Peter Bermel

    Outline:Recap from MondayExamplesMultimode ring resonatorsIsolating individual resonancesKerr nonlinearitiesQuantifying third-harmonic generation

  2. ECE 595E Lecture 35: MEEP Tutorial I

    18 Apr 2013 | | Contributor(s):: Peter Bermel

    Outline:MEEP InterfacesMEEP ClassesTutorial examples:WaveguideBent waveguide

  3. ECE 595E Lecture 34: Applications of Finite-Difference Time-Domain Simulations

    18 Apr 2013 | | Contributor(s):: Peter Bermel

    Outline:Recap from WednesdayPeriodic and randomly textured light-trapping structuresOverviewExperimental motivationComputational setupSimulated field evolutionAbsorption spectraFront coatingsCorrelated random structures

  4. ECE 595E Lecture 33: Introduction to Finite-Difference Time-Domain Simulations

    12 Apr 2013 | | Contributor(s):: Peter Bermel

    Outline:Recap from MondayIntroduction to FDTDSpecial features of MEEP:Perfectly matched layersSubpixel averagingSymmetryScheme (programmable) interfaceExamples:Periodic light-trapping structuresRandomly textured structures

  5. 2010 Nano-Biophotonics Summer School @ UIUC Lecture 32 - Understanding fundamental electromagnetic wave phenomena with finite-difference time-domain (FDTD) simulations

    28 Jan 2011 | | Contributor(s):: Lingxiao Zhang

  6. Experiment vs. Modelling: What's the problem?

    10 Aug 2009 | | Contributor(s):: William L. Barnes

    Progress in plasmonics has been greatly assisted by developments in experimental techniques and in numerical modelling. This talk will look at some of the difficulties that emerge when comparisons are made between experiment and theory. Through the use of four examples I will illustrate what...