Algorithm — Lesson 1

Algorithm Overview

In this video lesson, you will learn about how the slab mode is constructed in Lumerical varFDTD and how the 3D simulation is reduced to a 2D simulation. Key differences between the varFDTD simulation and a traditional 2D simulation will also be explained.

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Collapsing Geometry in Z

Lumerical varFDTD uses the effective index method to collapse the 3D geometry into a 2D representation. In this video, you will learn about two approaches used in the calculation of the slab mode: variational and reciprocity approaches.

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  • Manfred Hammer and Olena V. Ivanova, MESA Institute for Nanotechnology, University of Twente, Enschede, The Netherlands - "Effective index approximation of photonic crystal slabs: a 2-to-1-D assessment", Optical and Quantum Electronics, Volume 41, Number 4, 267-283, DOI: 10.1007/s11082-009-9349-3
  • Allan W. Snyder and John D. Love, Optical Waveguide Theory. Chapman & Hall, London, England, 1983.