A three-step design procedure is developed for dielectric stacks which are required to be nonpolarizing for a given wavelength λr and angle of incidence θ0,r, at which the reflectance Rr is prescribed. The method leads to solutions in which only three layer materials occur and can be applied for a wide range of values of θ0,r and Rr. The media can be chosen from the available coating materials. Furthermore, the procedure offers the possibility of optimizing with respect to the behavior of the reflectance in the neighborhood of λr and θ0,r. An example is elaborated, and its results are compared with an actually produced coating.
© 1983 Optical Society of America
C. M. de Sterke, C. J. van der Laan, and H. J. Frankena, "Nonpolarizing beam splitter design," Appl. Opt. 22, 595-601 (1983)