We present a novel high-order boundary integral equation based mode solver for layered nanophotonic waveguides featuring corners and junctions. The proposed solver leverages an indirect single-trace formulation for composite dielectrics which leads to a Müller-like integral equation posed on the cross-section of the material interfaces, and a high-order Nyström discretization for domains with corners. A variety of numerical examples demonstrate the superior accuracy of the proposed methodology as compared to standard commercial finite element and finite difference based mode solvers.
|Title of host publication||2021 IEEE MTT-S International Microwave Symposium (IMS)|
|Number of pages||4|
|Publication status||Published - 27 Oct 2021|
|Event||2021 IEEE MTT-S International Microwave Symposium - Atlanta, United States|
Duration: 7 Jun 2021 → 25 Jun 2021
|Conference||2021 IEEE MTT-S International Microwave Symposium|
|Period||7/06/21 → 25/06/21|