Nonpolarizing beam splitter design.
A three-step design procedure is developed for dielectric stacks which are required to be nonpolarizing for a given wavelength lambdar and angle of incidence theta 0,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 theta0,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 lambdar and theta0,r. An example is elaborated, and its results are compared with an actually produced coating.
de Sterke
C M
CM
Delft University of Technology, Department of Applied Physics, Optics Group, P.O. Box 5046, 2600 GA Delft, The Netherlands.
van der Laan
C J
CJ
Frankena
H J
HJ