Gi. Kweon et al., A COMPUTATIONAL METHOD OF DETERMINING REFLECTANCE AT ABRUPT WAVE-GUIDE INTERFACES, Journal of lightwave technology, 14(10), 1996, pp. 2436-2443
A new computational method has been developed to analyze electromagnet
ic wave reflections and transmissions at discontinuous interfaces of c
omplicated waveguide structures that is accurate within the limit of s
calar wave approximation. This formalism shows good agreement with the
solution of a known simple problem, but the strength of the method li
es in the capability of the formalism to handle complicated structures
which other methods fail to apply.