The FDTD solver region is a critical simulation object that defines the spatial extent, temporal duration, mesh properties, and boundary conditions for your simulation. This object must be placed in your simulation file and configured appropriately for your specific problem.
One of Lumerical FDTD's most powerful features is its ability to automate parameter sweeps and design optimization. This functionality enables systematic exploration of design spaces and automatic optimization toward target performance metrics.
Manages structures, sources, and monitors. Viewports: Displays the 3D structure and simulation layout. lumerical fdtd tutorial
Lumerical’s Finite-Difference Time-Domain (FDTD) solver is a premier tool for modeling light at the sub-wavelength scale. Whether you are designing silicon photonic waveguides or analyzing plasmonic nanoparticles, the software provides a robust environment to study light propagation and scattering. 1. The Core Simulation Workflow
Once the simulation is complete, the object tree will show "Result" icons. The FDTD solver region is a critical simulation
Boundary conditions determine how waves behave at the edges of the simulation box.
This workflow is systematically demonstrated in the "My First Simulation" course, which uses a nanohole array example to introduce the complete simulation setup process. lumerical fdtd tutorial
Ensure the simulation time (t) is long enough for the fields to decay (default 1000 fs is often sufficient).
To prevent numerical solutions from diverging, the time step must be strictly bound by the spatial grid sizes (
: Mimics a laser beam focusing onto a surface.