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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 16 — Aug. 6, 2007
  • pp: 10452–10457

Encapsulation shape with non-rotational symmetry designed for extraction of polarized light from unpolarized sources

Martin F. Schubert, Ahmed Noemaun, Sameer Chhajed, Jong Kyu Kim, E. Fred Schubert, and Cheolsoo Sone  »View Author Affiliations

Optics Express, Vol. 15, Issue 16, pp. 10452-10457 (2007)

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A non-rotationally symmetric encapsulation shape – which takes advantage of the low reflection coefficient for transverse magnetic polarized light near Brewster’s angle – designed to enhance extraction of a particular desired linear polarization from an unpolarized source is reported. The algorithm for optimization of the shape is described. Numerical ray-tracing simulations of the encapsulation shape are performed and predict an integrated enhancement of 8.3% in the ratio of desired polarization to undesired polarization when the refractive index of the encapsulant is 1.5. Experimental measurements of fabricated encapsulant shapes agree well with numerical predictions.

© 2007 Optical Society of America

OCIS Codes
(080.2740) Geometric optics : Geometric optical design
(230.3670) Optical devices : Light-emitting diodes
(260.5430) Physical optics : Polarization

Original Manuscript: July 17, 2007
Revised Manuscript: August 1, 2007
Manuscript Accepted: August 1, 2007
Published: August 2, 2007

Martin F. Schubert, Ahmed Noemaun, Sameer Chhajed, Jong Kyu Kim, E. Fred Schubert, and Cheolsoo Sone, "Encapsulation shape with non-rotational symmetry designed for extraction of polarized light from unpolarized sources," Opt. Express 15, 10452-10457 (2007)

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