Optical testing 12 Interferometers 10 Interferometry 8 Prisms 8 Bandwidth 4 Non-classical localization planes 4 Optical filters 4 Perturbation techniques 4 Aberrations 2 Algorithms 2 Approximation theory 2 Bifurcation (mathematics) 2 Birefringence 2 Cameras 2 Charge coupled devices 2 Chromatic splits 2 Coherent light 2 Digital discrimination 2 Dispersion (waves) 2 Fast Fourier transforms 2 Frequency modulation 2 Fringe spacings 2 Gaussian spectrum 2 Holographic interferometry 2 Image processing 2 Incoherent periodic source 2 Interferential filters 2 Light interference 2 Light polarization 2 Light reflection 2