Refractive index dispersion and phase matching for crystals and glasses used in nonlinear and ultrafast optics — computed in your browser, with nothing to install.
Every medium in the package: n(λ) with group index, group-velocity dispersion, third-order dispersion, dn/dT and walk-off, alongside the Sellmeier equation, its validity range and the papers it came from.
Collinear sum-frequency generation: phase-matching angles for every polarization combination, acceptance bandwidths in wavelength, angle and temperature, walk-off, and the effective nonlinearity for a given azimuthal cut.