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Subsampling of fine features in finite‐difference frequency‐domain simulations
Author(s) -
Wykes James G.,
Sewell Phillip,
Vukovic Ana,
Benson Trevor M.
Publication year - 2004
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.20558
Subject(s) - solver , microwave , slab , finite difference , finite difference time domain method , mode (computer interface) , derivative (finance) , sample (material) , point (geometry) , mathematical analysis , computer science , algorithm , mathematics , computational physics , physics , engineering , optics , geometry , mathematical optimization , telecommunications , structural engineering , financial economics , economics , thermodynamics , operating system
An improved three‐point finite‐difference scheme is presented, which deals correctly with all terms up to 2 nd order in the expansion of the derivative, regardless of the existence of multiple dielectric interfaces between sample points. The improved differencing scheme is implemented into a 1D slab‐mode solver for validation of accuracy and a 2D mode solver. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 95–101, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20558