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Electromagnetic propagation in unbounded inhomogeneous chiral media using the coupled mode method
Author(s) -
Gómez Álvaro,
Barba Ismael,
Cabeceira Ana C. L.,
Represa José,
Vegas Angel,
Solano Miguel Ángel
Publication year - 2007
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.22863
Subject(s) - isotropy , classification of discontinuities , microwave , electromagnetic field , finite difference time domain method , matching (statistics) , cascade , physics , mode (computer interface) , field (mathematics) , mathematical analysis , computational physics , optics , computer science , engineering , mathematics , quantum mechanics , pure mathematics , chemical engineering , operating system , statistics
Abstract The coupled mode method (CMM) is a seminumerical method for studying electromagnetic propagation, originally formulated for closed structures. We show how this method can be used for obtaining the propagation constants and electromagnetic field in unbounded isotropic chiral media. We also characterize single and periodic cascade discontinuities made of isotropic chiral slabs by means of the mode matching method combined with the CMM. The results are tested with a robust FDTD technique, modified to model bi‐isotropic media and with analytical solutions. In all cases good agreement is found. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2771–2779, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22863