How Does Tidy3D’s Mode Solver Work?
Working Principles A mode solver is a computational tool used to find the electromagnetic field distribution – or mode profile – and the propagation constant (β) of modes in a waveguide, optical fiber, or other types of guiding structures. To understand how a mode solver works, we consider a simple case and start with Maxwell’s equations, assuming a time-harmonic field and isotropic nonmagnetic medium where E is the electric field, H is the magnetic field, ω is the angular frequency, and...