Investigation of polarized light emitting diodes with integrated wire grid polarizer

Optics Express
Ors SepsiPál Koppa

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.

References

Mar 4, 2008·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Donghyun Kim, Eunji Sim
May 9, 2009·Nano Letters·Zhiwei LiR Stanley Williams
Mar 20, 2006·Optics Express·Yasin EkinciHans Sigg

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Citations

Jul 1, 2014·Optics Express·Ors SepsiPál Koppa
Jun 13, 2020·Scientific Reports·Seongmin ImDonghyun Kim
Mar 27, 2012·Optics Letters·Aaron T CannistraThomas J Suleski
Feb 8, 2013·Optics Express·Jung-Chieh Su, Tong-Mao Lin
Oct 10, 2018·Scientific Reports·Seongmin ImDonghyun Kim

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