Tracks the decay of fields over time. Useful for determining if a simulation has fully reached a steady state. Common Applications and Optimization
): The energy is trapped. Your structure has high-Q resonances (like a ring resonator). You must increase the total in the FDTD settings. Do not just lower the shutoff threshold. lumerical fdtd tutorial pdf
Click to view the fit. Ensure the green line (sampled data) closely matches the blue line (Lumerical's multi-coefficient material model) over your wavelength range (e.g., Step 2: Create Geometries Next, layout the physical structures. Tracks the decay of fields over time
Use FDTD in conjunction with INTERCONNECT for system‑level simulations. Learning how to extract S‑parameters and compact models from FDTD simulations is crucial for PIC design. Your structure has high-Q resonances (like a ring resonator)
After the simulation is complete, the tutorial shows how to analyze the results. This includes: