Complex Edge-State Phase Transitions in 1D Topological Laser Arrays

Midya Parto,Steffen Wittek,Hossein Hodaei,Gal Harari,Miguel A. Bandres,Jinhan Ren,Mikael C. Rechtsman,M. Segev,Demetrios N. Christodoulides,Mercedeh Khajavikhan

Complex Edge-State Phase Transitions in 1D Topological Laser Arrays

2018

Midya Parto
Steffen Wittek
Hossein Hodaei
Gal Harari
Miguel A. Bandres
Jinhan Ren
Mikael C. Rechtsman
M. Segev
Demetrios N. Christodoulides
Mercedeh Khajavikhan

We report the first observation of complex lasing transitions in a topological 1D Su-Schrieffer-Heeger active array. The effect of gain saturation nonlinearities and carrier dynamics on the edge-state is investigated both theoretically and experimentally.

Keywords:

Optoelectronics
Photonics
Scanning electron microscope
Physics
Phase transition
Lasing threshold
Saturation (chemistry)
Topology
Laser
carrier dynamics
active array

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