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physics.optics2022★ 19 cited
Reconfigurable chirality with achiral excitonic materials in the strong-coupling regime
P. Elli Stamatopoulou, Sotiris Droulias, Guillermo P. Acuna +2
We introduce and theoretically analyze the concept of manipulating optical chirality via strong coupling of the optical modes of chiral nanostructures with excitonic transitions in…
cond-mat.mes-hall2022★ 2 cited
Fundamental issues with light propagation through -symmetric systems
Fedor Shuklin, Christos Tserkezis, N. Asger Mortensen +1
We analyse the emergence of unphysical superluminal group velocities in Su--Schrieffer--Heeger (SSH) parity-time () symmetric chains, and explore the origins of such…