Ideal BPM simulation for optimized straight slot waveguide in HR-Si

After recent confirmation that BPM is suitable for THz investigations, these basic structures help as a starting point for interested THz researchers to implement this method in their optimization routine as an additional tool to more prevalent Finite Element Method (FEM) or Finite-Difference Time Domain (FDTD) solver which require more computational power and time. Data and files are generated with RSoft PhotonICs Suite utilizing BeamPROP as solver.

Simulation of an idealistic straight slot waveguide in HR-Si at 300 GHz. Including the calculation of the eigenmode and using the ideal eigenmode solution as launch field to track the field evolution within the structure. Idealized, neglecting absorption losses, to showcase Beam Propagation Method (BPM) working within the THz domain, opening the possibility to integrate this approach with FEM/FDTD or on certain problems even working as substitute.