115 citations · 367 across the 11 of their papers we have counts for
11 papers
Valley polarized edge states beyond inversion symmetry breaking
Dia'aaldin Bisharat, Dan Sievenpiper
Valley-contrast physics has gained considerable attention, particularly for realizing photonic topological insulators (PTIs) that support reflection-free valley-polarized edge mode…
Engineering Equifrequency Contours of Metasurfaces for Self-Collimated Surface Wave Steering
Sara M. Kandil, Dia'aaldin J. Bisharat, Daniel F. Sievenpiper
Metasurfaces provide unique capability in guiding surface waves and controlling their polarization and dispersion properties. One way to do that is by analyzing their equifrequency…
Designing Topological Defect Lines Protected by Gauge-dependent Symmetry Indicators
Erda Wen, Dia'aaldin J. Bisharat, Robert J. Davis +2
Symmetry indicators are a modern tool for characterizing topological phases that require only minimal computational expense but provide an elegant means of designing practical devi…
Topologically Protected Edge States in Triangular Lattices
Robert J. Davis, Yun Zhou, Dia'aaldin J. Bisharat +2
We describe the possibility for topologically robust edge states existing on interfaces of triangular lattices which are supported by rotational symmetries that are sensitive to bo…
On-chip unidirectional waveguiding for surface acoustic waves along a defect line in a triangular lattice
Yun Zhou, Naiqing Zhang, Dia'aaldin J. Bisharat +5
The latest advances in topological physics have yielded a rich toolset to design highly robust wave transfer systems, for overcoming issues like beam steering and lateral diffracti…
Chiral Surface Wave propagation with Anomalous Spin-momentum Locking
Sara M. Kandil, Dia'aaldin J. Bisharat, Daniel F. Sievenpiper
The ability to control the directionality of surface waves by manipulating its polarization has been of great significance for applications in spintronics and polarization-based op…
Photonic topological insulators a beginner's introduction
Dia'aaldin J. Bisharat, Robert J. Davis, Yun Zhou +2
Control and manipulation of electromagnetic waves has reached a new level with the recent understanding of topological states of matter. These metamaterials have the potential to r…
Classical-to-Topological Transmission Line Couplers
Robert J. Davis, Dia'aaldin J. Bisharat, Daniel F. Sievenpiper
Recent advances in topologically robust waveguiding for electromagnetic systems have presented opportunities for improving practical photonic and microwave devices. To bring this r…
Topological valley transport under long-range deformations
Zhixia Xu, Xianghong Kong, Robert J. Davis +4
Edge states protected by bulk topology of photonic crystals show robustness against short-range disorder, making robust information transfer possible. Here, topological photonic cr…
Electromagnetic-dual metasurfaces for topological states along a one-dimensional interface
Diaaaldin J. Bisharat, Daniel F. Sievenpiper
The discovery of topological insulators has rapidly been followed by the advent of their photonic analogues, motivated by the prospect of backscattering-immune light propagation. S…
Guiding waves along an infinitesimal line between impedance surfaces
Dia'aaldin J. Bisharat, Daniel F. Sievenpiper
We present a new electromagnetic mode that forms at the interface between two planar surfaces laid side by side in free space, effectively guiding energy along an infinitesimal, on…