12 citations · 34 across the 4 of their papers we have counts for
4 papers
Nonreciprocal Local-Resonance Induced Complex Band Hybridization
Wang Tat Yau, Kai Fung Lee, Raymond P. H. Wu +4
We study the complex band hybridization induced by nonreciprocal local resonances in photonic crystals. Composed of trimer unit cells, a two-dimensional (2D) magnetophotonic crysta…
Fundamental laws of chiral band crossings: local constraints, global constraints, and topological phase diagrams
Kirill Alpin, Moritz M. Hirschmann, Niclas Heinsdorf +4
We derive two fundamental laws of chiral band crossings: (i) a local constraint relating the Chern number to phase jumps of rotation eigenvalues; and (ii) a global constraint deter…
Maxwell's demon-like nonreciprocity by non-Hermitian gyrotropic metasurfaces
Wenyan Wang, Wang Tat Yau, Yanxia Cui +2
We show that Maxwell's demon-like nonreciprocity can be supported in a class of non-Hermitian gyrotropic metasurfaces in the linear regime. The proposed metasurface functions as a…
Topological Theory for Perfect Metasurface Isolators
Wai Chun Wong, Wenyan Wang, Wang Tat Yau +1
We introduce topological theory of perfect isolation: perfect transmission from one side and total reflection from another side simultaneously. The theory provides an efficient app…