Lumerical Fdtd Tutorial [cracked] Official

Introduction to FDTD

Part 3: Advanced Analysis and Scripting (The Lumerical Way)

Step 6: Running the Simulation and Analyzing Results.

After checking for warnings (e.g., insufficient PML thickness, mesh too coarse), the simulation is executed. For 3D problems, this can be memory-intensive. Lumerical leverages parallel computing (multi-core CPU, GPU acceleration). Once completed, results are viewed in the visualizer. We can plot ( T(\lambda) ) and ( R(\lambda) ) versus wavelength, observe the photonic bandgap as a dip in transmission, and visualize the field profile at resonant wavelengths.

• FDTD time elapsed: Is it reasonable?
• PML reflection: Should be below -40 dB.