Liquid-crystal-on-silicon- (LCoS-) based digital projection systems require high-performance polarizing beam splitters. The classical beam-splitter cube with an immersed interference coating can fulfill these requirements. Practical layer designs can be generated by computer optimization using the classic MacNeille polarizer layer design as the starting layer design. Multilayer structures with 100 nm bandwidth covering the blue, green, or red spectral region and one design covering the whole visible spectral region are designed. In a second step these designs are realized by using plasma-ion-assisted deposition. The performance of the practical beam-splitter cubes is compared with the theoretical performance of the layer designs.
© 2006 Optical Society of America
Design of Optical Coatings
Original Manuscript: March 1, 2005
Revised Manuscript: August 22, 2005
Manuscript Accepted: August 24, 2005
Bernhard von Blanckenhagen, "Practical layer designs for polarizing beam-splitter cubes," Appl. Opt. 45, 1539-1543 (2006)