After the simulation finishes, right-click on monitors to visualize the results. You can perform post-processing tasks using Analysis Groups (built-in scripts for tasks like calculating transmission, reflection, or grating orders) or by writing custom scripts in the Lumerical Scripting Language (LSF) or Python API.
Lumerical provides sophisticated algorithms to handle material interfaces within the mesh:
Click to ensure your mesh and geometry do not contain errors. Click Run to start the solver.
Ensure the Mode Source spans well past the boundaries of your waveguide core profile.
With a click, the simulation began. The Finite-Difference Time-Domain algorithm started its work, slicing time into femtoseconds and space into nanometers. On his screen, the "Visualizer" window bloomed into life. He watched the pulse of light—a localized burst of energy—travel down the guide. The Discovery lumerical fdtd tutorial
: Exploits structural symmetry to cut your simulation time and memory usage by up to Step 4: Add Sources
T = transmission("transmission"); # Gets the transmission data f = getdata("transmission", "f"); # Gets frequency plot(f, T); # Plots transmission vs frequency
Depending on your simulation requirements, alternative boundary conditions may be more appropriate:
In the "Modal Analysis" tab, click and choose the fundamental TE mode (usually the mode with the highest effective index, 4. Monitor Placement After the simulation finishes, right-click on monitors to
For more advanced workflows, Lumerical supports:
Use the tab to add objects (e.g., rectangles, circles) to the simulation. Set their dimensions, position, and material properties. C. Add the FDTD Simulation Region
While Lumerical FDTD is a powerful tool, it's useful to understand how it compares to other major solvers:
Lumerical FDTD is a commercial software package developed by Lumerical Solutions, Inc. The software is widely used in the field of photonics and optics for designing and simulating various devices, such as optical fibers, waveguides, photonic crystals, and solar cells. Lumerical FDTD provides a user-friendly interface for setting up and running FDTD simulations, allowing users to model complex optical systems with ease. Click Run to start the solver
Everything is defined relative to the global origin.
In its settings, select 50 frequency points to get a smooth spectrum curve. 5. Run and Analyze Save your project and click .
Sources excite the electromagnetic fields in the simulation. In Lumerical FDTD, you have several options:
Ensure the "Simulation Time" in the FDTD region is long enough for the fields to decay. If the "Autoshutoff" level doesn't reach 10-510 to the negative 5 power , your results may show ripples.