321 citations · 437 across the 5 of their papers we have counts for
5 papers
Topological spin defects of light
Haiwen Wang, Charles C. Wojcik, Shanhui Fan
Topological defects are found in a variety of systems, and their existence are robust under perturbations due to their topological nature. Here we introduce a new type of topologic…
Eigenvalue topology of non-Hermitian band structures in two and three dimensions
Charles C. Wojcik, Kai Wang, Avik Dutt +2
In the band theory for non-Hermitian systems, the energy eigenvalues, which are complex, can exhibit non-trivial topology which is not present in Hermitian systems. In one dimensio…
Observation of arbitrary topological windings of a non-Hermitian band
Kai Wang, Avik Dutt, Ki Youl Yang +3
The non-trivial topological features in the energy band of non-Hermitian systems provide promising pathways to achieve robust physical behaviors in classical or quantum open system…
-Symmetric Topological Edge-Gain Effect
Alex Y. Song, Xiao-Qi Sun, Avik Dutt +6
We demonstrate a non-Hermitian topological effect that is characterized by having complex eigenvalues only in the edge states of a topological material, despite the fact that the m…
Absence of unidirectionally propagating surface plasmon-polaritons in nonreciprocal plasmonics
Siddharth Buddhiraju, Yu Shi, Alex Song +5
In the presence of an external magnetic field, the surface plasmon polariton that exists at the metal-dielectric interface is believed to support a unidirectional frequency range n…