JOURNAL OF LIGHTWAVE TECHNOLOGY 39(9) 2941-2948 2021年5月 [査読有り]
An efficient finite-element-method-based scattering operator (FEM-SO) is proposed. Utilizing field based propagation operators as boundary conditions, arbitrary light waves including radiation and evanescent waves can be treated at input and outpu...
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS 31(4) 345-348 2021年4月 [査読有り]
Nonradiative dielectric waveguide (NRD guide) is a promising platform for realizing compact millimeter waveguide circuits. NRD guide devices have been simulated by several numerical simulation approaches so far and these approaches treat 3-D struc...
We propose a novel finite element method (FEM) for efficient optical waveguide analysis to improve the computational efficiency in inverse design of optical waveguide devices. In our formulation, applying slowly varying envelope approximation (SVE...