Title
Simplified design of thin-film polarizing beam splitter using embedded symmetric trilayer stack
Document Type
Article
Publication Date
7-1-2011
Abstract
An analytically tractable design procedure is presented for a polarizing beam splitter (PBS) that uses frustrated total internal reflection and optical tunneling by a symmetric LHL trilayer thin-film stack embedded in a high-index prism. Considerable simplification arises when the refractive index of the high-index center layer H matches the refractive index of the prism and its thickness is quarter-wave. This leads to a cube design in which zero reflection for the p polarization is achieved at a 45 degrees angle of incidence independent of the thicknesses of the identical symmetric low-index tunnel layers L and L. Arbitrarily high reflectance for the s polarization is obtained at subwavelength thicknesses of the tunnel layers. This is illustrated by an IR Si-cube PBS that uses an embedded ZnS-Si-ZnS trilayer stack.
Journal Name
Applied Optics
Recommended Citation
R. M. A. Azzam, "Simplified design of thin-film polarizing beam splitter using embedded symmetric trilayer stack," Appl. Opt. 50, 3316-3320 (2011)
Comments
This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website:http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-19-3316. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.