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A group theoretical route to deterministic Weyl points in chiral photonic lattices by Saba, Matthias; Hamm, Joachim M.; Baumberg, Jeremy J.; Hess, Ortwin is a scholarly article available to read on EtoBox.

What is A group theoretical route to deterministic Weyl points in chiral photonic lattices about?

Classical topological phases derived from point degeneracies in photonic bandstructures show intriguing and unique behaviour. Previously identified exceptional points are based on accidental degeneracies and subject to engineering on a case-by-case basis. Here we show that symmetry induced (deterministic) pseudo Weyl points with non-trivial topology and hyper-conic dispersion exist at the centre of the Brillouin zone of chiral cubic systems. We establish the physical implications by means of a $P2_13$ sphere packing, realised as a nano plasmonic system and a photonic crystal.

Author

Saba, Matthias; Hamm, Joachim M.; Baumberg, Jeremy J.; Hess, Ortwin

Published

2017

Language

EN