Instant optical design tools on any device
Design optical coatings with an interactive stack builder. Real-time reflectance, transmittance, and absorptance.
Rigorous coupled-wave analysis for diffraction gratings. Compute diffraction efficiency for binary, blazed, and sinusoidal gratings.
Diffraction angles, angular dispersion, resolving power, and spectral geometry for surface-relief and holographic gratings.
Calculate reflection at any interface with 3,500+ optical materials. Find Brewster's angle and beam power.
Calculate waveguide modes for silicon photonic strip, rib, and slot waveguides. Effective index method with real-time mode profiles.
Design microring resonators for WDM filters, modulators, and sensors. Through/drop spectra, FSR, Q-factor, coupling regime analysis.
Design Mach-Zehnder modulators for silicon photonics and LiNbO₃. Transfer functions, Vπ, extinction ratio, and chirp with carrier-depletion, thermo-optic, and Pockels phase shifters.
Analyze optical links with eye diagrams, TDECQ, and link budgets. Start from NRZ and PAM4 templates.
Propagate Gaussian beams through lenses, mirrors, and optical elements with ABCD matrices. Interactive beam diagram with M² support.
Fabry-Perot etalon transmission spectrum, FSR, finesse, Q-factor. Resonator stability diagram and Gaussian beam waist.
Build optical element chains and visualize polarization on an interactive Poincaré sphere with animated ellipses.
Browse 3,500+ optical materials with Sellmeier coefficients. Compare refractive index and absorption across wavelengths.
Interactive tutorials covering refractive index, dispersion, Fresnel equations, polarization, thin-film coatings, and mirror design.
Why light slows down in glass, how dispersion works, and the Sellmeier model. Interactive material database.
Why does glass reflect 4% of light? s/p polarization, Brewster's angle, and total internal reflection.
How a layer thinner than a wavelength creates vivid colors. Quarter-wave condition and optical path length.
From single-layer MgF₂ to broadband multilayer designs. The physics behind every AR coating.
Metal vs. dielectric stacks — from 95% silver mirrors to 99.99% quarter-wave reflectors.
Polarizers, waveplates, and optical rotators. Build element chains and visualize on the Poincaré sphere.