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2016-11-17 - Colloque/Article dans les actes avec comité de lecture - Anglais - 4 page(s)

Rivolta Nicolas, Maes Bjorn , "Side-coupled resonators with parity-time symmetry for broadband unidirectional invisibility" in 21st Annual Symposium of the IEEE Photonics Society Benelux Chapter, 127-131, Ghent, Belgium, 2016

  • Codes CREF : Matériaux optiques (DI1256)
  • Unités de recherche UMONS : Matériaux Micro et Nanophotoniques (S803)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
  • Centres UMONS : Physique des matériaux (CRPM)

Abstract(s) :

(Anglais) We analyze the scattering properties of a Parity- Time (PT) symmetric structure made of a waveguide and a finite chain of side-coupled resonators. 1D PT-structures exhibit unidirectional invisibility, meaning unit-transmission and zero-reflection for incidence from one direction. The side-coupled nature of our structure provides for different features than the traditional PT Bragg grating, which we explore rigorously. For example, we can achieve a broadband unidirectional invisibility with only two resonators, and we observe rich dispersions for the unidirectional invisibility with four resonators.