Reciprocity and the scattering matrix of waveguide modes
Optics
2015-06-12 v1
Abstract
The implications of the Lorentz reciprocity theorem for a scatterer connected to waveguides with arbitrary modes, including degenerate, evanescent, and complex modes, are discussed. In general it turns out that a matrix is symmetric, where is the matrix of generalized orthogonality coefficients, and is the scattering matrix. Examples are given, including a scatterer surrounded by waveguides or free space, and discontinuities of waveguides.
Cite
@article{arxiv.1301.2458,
title = {Reciprocity and the scattering matrix of waveguide modes},
author = {Guro K. Svendsen and Magnus W. Haakestad and Johannes Skaar},
journal= {arXiv preprint arXiv:1301.2458},
year = {2015}
}