Control of exceptional points in photonic crystal slabs

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Various ways of controlling the extent of the ring of exceptional points in photonic crystal slabs are investigated. The extent of the ring in photonic crystal slabs is found to vary with the thickness of the slab. This enables recovery of Dirac cones in open, non-Hermitian systems, such as a photonic crystal slab. In this case, all three bands exhibit a bound state in the continuum in close proximity of the Γ point. These results may lead to new designs of small photonic-crystal-based lasers exhibiting high-quality factors.
Original languageEnglish
JournalOptics Letters
Volume42
Issue number15
Pages (from-to)2866-2869
ISSN0146-9592
DOIs
Publication statusPublished - 2017

Keywords

  • Atomic and Molecular Physics
  • Periodic structures
  • Bound state
  • Close proximity
  • Dirac cones
  • Exceptional points
  • Gamma point
  • Hermitians
  • High quality factors
  • Photonic crystal slab
  • Photonic crystals

Fingerprint Dive into the research topics of 'Control of exceptional points in photonic crystal slabs'. Together they form a unique fingerprint.

Cite this