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On the modeling of periodic structures using the finite‐difference time‐domain algorithm
Author(s) -
Yu Wenhua,
Dey Supriyo,
Mittra Raj
Publication year - 2000
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/(sici)1098-2760(20000205)24:3<151::aid-mop2>3.0.co;2-8
Subject(s) - finite difference time domain method , microwave , photonic crystal , algorithm , oblique case , waveguide , optics , time domain , incidence (geometry) , finite difference method , computer science , frequency domain , finite difference , physics , mathematics , mathematical analysis , telecommunications , linguistics , philosophy , computer vision
In this paper, we present a technique for modeling periodic structures, such as spatial filters and photonic bandgap materials, using the finite‐difference time‐domain (FDTD) algorithm, for both the normal and oblique incidence cases. A waveguide simulator technique is employed to model these periodic structures, and the issue of arbitrary angles of incidence as well as the problem of sweeping frequency of the illuminating wave, that are difficult to handle in the FDTD waveguide simulator approach, are addressed. Comparisons with results derived using other techniques are presented, and good agreement is demonstrated. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 24: 151–155, 2000.