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Novel propagation features of dielectric planar chirowaveguides due to nonreciprocity
Author(s) -
Paiva Carlos R.,
Topa António L.,
Barbosa Afonso M.
Publication year - 1993
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.4650060309
Subject(s) - limit (mathematics) , planar , dielectric , reciprocal , physics , mode (computer interface) , cutoff , slab , substrate (aquarium) , condensed matter physics , cutoff frequency , optics , optoelectronics , quantum mechanics , mathematics , computer science , mathematical analysis , linguistics , philosophy , computer graphics (images) , oceanography , geophysics , geology , operating system
The effect of a substrate's nonreciprocity on the surface modes of a grounded chiroslab guide is investigated. It is shown that, for any surface mode, a bound on the magnitude of the nonreciprocity parameter exists, beyond which the mode is at cutoff. Furthermore, in the nonreciprocal achiral limit, the slab guide can only support TE modes—whereas in the reciprocal achiral limit both TE and TM modes can propagate. © 1993 John Wiley & sons, Inc.