The design principle for a nonpolarizing beam splitter based on the Brewster condition in a cube is introduced. Nonpolarizing beam splitters in an asymmetrical glass cube are proposed and theoretically investigated, and applied examples are given. To realize 50% reflectance and 50% transmittance at specified wavelengths for both polarization components with an error of less than 2%, two measurements are taken by adjusting the refractive index of the substrate material and optimizing the thicknesses of each film in the design procedures. The simulated results show that the targets are achieved using the method reported here.
© 2008 Optical Society of America
Original Manuscript: July 18, 2007
Revised Manuscript: November 21, 2007
Manuscript Accepted: December 16, 2007
Published: February 20, 2008
Jin Hui Shi and Zheng Ping Wang, "Theoretical analysis of two nonpolarizing beam splitters in asymmetrical glass cubes," Appl. Opt. 47, C275-C278 (2008)