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Updated: Jun 10, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
Investigation of polarized light emitting diodes with integrated wire grid polarizer
Ors Sepsi1, István Szanda, Pál Koppa
1Department of Atomic Physics, Budapest University of Technology and Economics, Budafoki 6-8., 1111, Budapest, Hungary. sepsi.ors@gmail.com
Abstract:
The polarization properties of light emitting diodes with integrated wire grid polarizers are investigated. Rigorous coupled wave analysis and Monte-Carlo ray tracing are used for modeling the gratings and the entire LED structure respectively. We show that it is more advantageous to place the polarizer onto the LED encapsulation rather than onto the die. With the proposed arrangement the average extinction ratio is 2.37 in the uncollimated case and 76.86 in the collimated case, while the light extraction efficiency is significantly higher than that of the LED + external polarizer combination. The achieved results compare favorably to other polarized LED solutions proposed in the literature.
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