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2‐D TM scattering by dielectric cylinders with weakly quadratic and cubic nonlinearities in the phase velocity
Author(s) -
Caorsi Salvatore,
Massa Andrea,
Pastorino Matteo
Publication year - 1999
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(19990205)20:3<183::aid-mop10>3.0.co;2-w
Subject(s) - scattering , physics , quadratic equation , computation , phase (matter) , nonlinear system , microwave , dielectric , computational physics , amplitude , optics , distribution (mathematics) , mathematical analysis , field (mathematics) , scattering amplitude , mathematics , geometry , quantum mechanics , algorithm , pure mathematics
Abstract In this letter, the electromagnetic field distribution and the bistatic scattering width are computed in the case of scattering by nonlinear dielectric cylinders, whose nonlinearities are characterized by an amplitude dependence of the phase velocity. The nonlinearity is assumed to be weak, and the field computation is performed by an iterative approach based on the distorted‐wave Born approximation. Several numerical simulations are reported, concerning the computation of the internal and external field distribution, the bistatic scattering width, and the effective phase velocity of circular cylinders with quadratic and cubic nonlinearities. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 20: 183–187, 1999.