Parity-time symmetric chain resonators
Phang, Sendy and Vukovic, Ana and Creagh, Stephen and Gradoni, Gabriele and Sewell, Phillip and Benson, Trevor M. (2016) Parity-time symmetric chain resonators. In: 7th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 16), 25-28 July 2016, Malaga, Spain.
A simple tight-binding model to study the band-structure of an infinite length Parity-time (PT) symmetric chain of resonators is presented in this paper. In the talk, we will investigate the impact of having a structure of finite length and consider the effect of a modulation of the real part of the refractive index on the complete band-structure of the PT-chain system. For a finite PT-chain structure under certain modulation, we observe the existence of a localised mode which is either lasing or dissipating
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