Quality factor enhancement in photonic crystal slabs by manipulation of the ring of exceptional points

Piotr Marek Kaminski, Alireza Taghizadeh, Olav Breinbjerg, Jesper Mørk, Samel Arslanagic

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Presently, we investigate the influence of the extent of a ring of exceptional points on the Q-factor of three-dimensional photonic crystal slabs. By changing the thickness of the slab, the extent of the ring of exceptional points is varied, allowing us to recover the Dirac cones in open, non-Hermitian systems. In this case, three bound states in the continuum are exhibited close to the Gamma-point. For an optimized thickness of the slab, the associated Q-factors are found to grow rapidly with the size of the slab. The present results may lead to novel, small area and high Q-factor photonic crystal surface-emitting lasers.
Original languageEnglish
Title of host publicationProceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, Nusod
PublisherIEEE
Publication date2017
Pages11-12
DOIs
Publication statusPublished - 2017
Event17th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD17) - Kgs. Lyngby, Denmark
Duration: 24 Jul 201728 Jul 2017

Conference

Conference17th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD17)
Country/TerritoryDenmark
CityKgs. Lyngby
Period24/07/201728/07/2017

Keywords

  • Exceptional point
  • Dirac point
  • Small area high Q-factor PhC lasers

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