Demonstration of a two-dimensional $${\cal P}{\cal T}$$ PT -symmetric crystal

To date, experimental demonstrations of PT-symmetric systems have been restricted to one dimension. Here, the authors experimentally realize and characterize a two-dimensional PT-symmetric system using photonic lattice waveguides with judiciously designed refractive index landscape and an alternatin...

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Bibliographic Details
Main Authors: Mark Kremer, Tobias Biesenthal, Lukas J. Maczewsky, Matthias Heinrich, Ronny Thomale, Alexander Szameit
Format: article
Language:EN
Published: Nature Portfolio 2019
Subjects:
Q
Online Access:https://doaj.org/article/6321a730de6d49a9b7c181b1bc081389
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