Online Thin-Film TMM Simulator
Build multilayer stacks and calculate reflectance, transmittance, and absorptance with the Transfer Matrix Method.
Run sweeps, optimize designs, and inspect spectra and color results.
From stack setup to spectra in three steps.
- 01
Define your stack
Layers, materials, layer-groups with repeats. Live 3D structure preview.
- 02
Compute & optimize
One-click sweeps over thickness, angle, wavelength. Built-in optimizer when you have a target.
- 03
Visualize the physics
R / T / A spectra, color, ellipsometry, depth-resolved E-field. Export CSV or share the recipe.
These examples come from published papers.
Each case includes a runnable recipe and a side-by-side comparison with the original figure.
Tell an agent what to simulate, and let it build and run the stack.
Dreapex TMM provides an MCP interface. AI tools that support MCP can create models, run sweeps, and read results from the simulator.
Reproduce the Fink omnidirectional reflector at 0°, 45°, 80°
for both TE and TM. Use the polystyrene / Te 9-layer recipe
and report the average reflectance over 10–15 µm.
TMM result: ⟨R⟩ ≈ 0.99 across the 10–15 µm band.
Built for serious thin-film design
Build a thin-film stack and see how the spectrum changes.
Open the app to simulate, or follow the docs first.