🚀2D FDTD Electromagnetic Simulator 👋 simple 2D FDTD (Finite-Difference Time-Domain) simulator in C++.

Simulates 2D Electromagnetic Waves: Based on the classic Yee algorithm. Handles Real Materials: Uses the Drude model for metals like gold or copper (no more boring perfect conductors!). mart Boundaries: Has CPML (think of it as "invisibility cloaks" for the edges of the simulation) to prevent waves from bouncing back. Multiple Sources: You can have more than one "light source" and even control their phase (in-phase, out-of-phase, etc.). Looks Pretty: Outputs .vtk files so you can visualize the results in ParaView , which is awesome. Runs Faster: Uses OpenMP to spread the work across all CPU cores.

the results!

The simulation will generate a bunch of fdtd_fields_*.vtk files.

paraview fdtd_fields_*.vtk