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Photonic Realization of a Transition Between Topological Phases Residing in the Weak and Strong Floquet Driving Regimes
Jonathan Guglielmon, Sheng Huang, Kevin P. Chen +1
A photonic Floquet topological insulator has previously been experimentally realized in an array of evanescently-coupled helical waveguides. In the topological regime probed by tha…
Complex Edge-State Phase Transitions in 1D Topological Laser Arrays
Midya Parto, Steffen Wittek, Hossein Hodaei +7
We report the first observation of lasing in topological edge states in a 1D Su-Schrieffer-Heeger active array of resonators. We show that in the presence of chiral-time ($\mathcal…
Observation of Photonic Topological Valley-Hall Edge States
Jiho Noh, Sheng Huang, Kevin Chen +1
We experimentally demonstrate topological edge states arising from the valley-Hall effect in twodimensional honeycomb photonic lattices with broken inversion symmetry. We break inv…