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Refractive index adaptive gridding for finite‐difference time‐domain methods
Author(s) -
Körner T. O.,
Fichtner W.
Publication year - 1999
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/(sici)1099-1204(199901/04)12:1/2<143::aid-jnm321>3.0.co;2-d
Subject(s) - finite difference time domain method , interfacing , refractive index , computer science , grid , stability (learning theory) , domain (mathematical analysis) , homogeneous , finite difference method , transformation optics , finite difference , computational science , optics , algorithm , mathematics , physics , mathematical analysis , metamaterial , geometry , statistical physics , machine learning , computer hardware
A new method for refractive index adaptive meshing based on grid interfacing at material boundaries in finite‐difference time‐domain (FDTD) methods is presented. It allows highly efficient simulation of structures consisting of homogeneous regions with large differences in refractive index, which are frequently encountered when modelling light‐sensitive semiconductor devices on which light impinges from vacuum. In addition to the superior computational performance, this method gives more accurate results for certain test problems than standard FDTD. The stability of the method is demonstrated by means of test example problems. Copyright © 1999 John Wiley & Sons, Ltd.