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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 19 — Jul. 1, 2011
  • pp: 3316–3320

Simplified design of thin-film polarizing beam splitter using embedded symmetric trilayer stack

R. M. A. Azzam  »View Author Affiliations


Applied Optics, Vol. 50, Issue 19, pp. 3316-3320 (2011)
http://dx.doi.org/10.1364/AO.50.003316


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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 ° 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.

© 2011 Optical Society of America

OCIS Codes
(230.1360) Optical devices : Beam splitters
(230.5440) Optical devices : Polarization-selective devices
(240.0310) Optics at surfaces : Thin films
(260.5430) Physical optics : Polarization
(310.6860) Thin films : Thin films, optical properties

ToC Category:
Optical Devices

History
Original Manuscript: March 28, 2011
Manuscript Accepted: May 6, 2011
Published: July 1, 2011

Citation
R. M. A. Azzam, "Simplified design of thin-film polarizing beam splitter using embedded symmetric trilayer stack," Appl. Opt. 50, 3316-3320 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-19-3316

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