Phase dispersion induced by coatings can be a critical phenomenon in interferometry. We are interested in special mirrors intended for a Fabry–Perot interferometer with a high reflectance region and a low reflectance region in which phase dispersion on reflection must be avoided. We describe how a classical approach that uses the concepts of admittance and symmetrical multilayers allows the design of simple solutions.
© 1996 Optical Society of America
F. Lemarquis and E. Pelletier, "Optical coating without phase dispersion for a Fabry-Perot interferometer," Appl. Opt. 35, 4987-4992 (1996)