Fase, group delay & GDD

Spectrale fase, groepsvertraging en group-delay dispersie van multilayer coatings. Voor ultrakort-puls spiegels en breedband AR op laser-systemen.

Computes φ(λ), GD(λ) and GDD(λ) from the complex reflection (or transmission) amplitude of the TMM kernel. Phase is unwrapped to avoid 2π jumps.