OPTI 505: Interference and Diffraction
Birefringence is an optical property possessed by a material which has more than one index of refraction. This anisotropy in the index of refraction is dependant on the crystallographic projection and can be calculated as follows:
Interference (wave propagation) - Wikipedia
Birefringence can also be estimated from a color interference chart for colors observed under crossed polarizers on a petrographic microscope. The interference color chart is from Bloss, 1962, fig. 8-17. Click on the image for a larger picture.
Interference and interferometry, concepts of coherence, holography, diffraction theory, Fraunhofer and Fresnel diffraction, volume diffraction, Gaussian beam propagation, optical transfer function, speckle.