316 citations · 1.1k across the 19 of their papers we have counts for
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Diverse surface waves supported by bianisotropic metasurfaces
Oubo You, Wenlong Gao, Yachao Liu +2
Surface waves supported by structured metallic surfaces, i.e. metasurfaces, have drawn wide attention recently. They are promising for various applications ranging from integrated…
Gain and loss induced topological insulating phase in a non Hermitian electrical circuit
Shuo Liu, Shaojie Ma, Cheng Yang +5
There have been considerable efforts devoted to the study of topological phases in certain non-Hermitian systems that possess real eigenfrequencies in the presence of gain and loss…
Experimental identification of the second-order non-Hermitian skin effect with physics-graph-informed machine learning
Ce Shang, Shuo Liu, Ruiwen Shao +11
Topological phases of matter are conventionally characterized by the bulk-boundary correspondence in Hermitian systems: The topological invariant of the bulk in dimensions corr…
Spin-Orbit Interaction of Light Enabled by Negative Coupling in High Quality Factor Optical Metasurfaces
Wenlong Gao, Basudeb Sain, Thomas Zentgraf
We study the negative couplings amid local resonances of photonic metasurfaces. In our analysis, we discover pseudo-spin-orbit coupled bulk modes leading to lines of circularly pol…
Efficient frequency conversion with geometric phase control in optical metasurfaces
Bernhard Reineke Matsudo, Basudeb Sain, Luca Carletti +5
Metasurfaces have appeared as a versatile platform for miniaturized functional nonlinear optics due to their design freedom in tailoring wavefronts. The key factor that limits its…
Nodal lines in momentum space: topological invariants and recent realizations in photonic and other systems
Haedong Park, Wenlong Gao, Xiao Zhang +1
Topological insulators constitute one of the most intriguing phenomena in modern condensed matter theory. The unique and exotic properties of topological states of matter allow for…