Investigation of polarized light emitting diode

Tibor Gál, S. Ors, P. Koppa

Research output: Chapter in Book/Report/Conference proceedingChapter


The significance of LED technology in the lighting industry is increasing abruptly. However many application (LCD backlight, vehicle lights) require polarized light sources. For these applications polarized light is produced by polar filters, which limits the efficiency to less than 50%. The goal of this research was to develop a LED providing polarized light, so it is not necessary to use polar filters. The object of this work was to investigate oriented metallic nanoparticles to improve the efficiency and to manipulate the polarization of the outcoming light of a LED source. To calculate the optical properties of this problem it is necessary to solve the Maxwells equations with numerical methods. For this purpose the finite element method (FEM) was used.We observed that this interaction is strongly dependent on the polarization, distance, and orientation of the particles.

Original languageEnglish
Title of host publicationNano-Structures for Optics and Photonics
Subtitle of host publicationOptical Strategies for Enhancing Sensing, Imaging, Communication and Energy Conversion
PublisherSpringer Netherlands
Number of pages1
ISBN (Electronic)9789401791335
ISBN (Print)9789401791328
Publication statusPublished - Jan 1 2015


  • Graphene on silicon
  • Graphene ribbon sandwich
  • Strongly confined plasmon

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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    Gál, T., Ors, S., & Koppa, P. (2015). Investigation of polarized light emitting diode. In Nano-Structures for Optics and Photonics: Optical Strategies for Enhancing Sensing, Imaging, Communication and Energy Conversion Springer Netherlands.