210 citations · 763 across the 11 of their papers we have counts for
12 papers
All-Passive Nonreciprocal Metasurface
Ahmed M. Mahmoud, Arthur R. Davoyan, Nader Engheta
We introduce a systematic approach to design all-passive subwavelength high performance metasurfaces that exhibit nonreciprocal properties and achieve wave-flow isolation. Moreover…
One-way Phonon Isolation In Acoustic Waveguides
Mehdi B. Zanjani, Arthur R. Davoyan, Ahmed M. Mahmoud +2
We present a method to achieve one-way mode isolation in acoustic waveguides by considering spatio-temporal modulation of material properties. Mode conversion between symmetric and…
Magnetized Epsilon-Near-Zero (ENZ) Structures: Hall Opacity, Hall Transparency, and One-Way Photonic Surface States
Arthur Davoyan, Nader Engheta
We study propagation of transverse-magnetic (TM) electromagnetic waves in the bulk and at the surface of magnetized epsilon-near-zero (ENZ) medium in a Voigt configuration. We reve…
Nanoscale plasmonic circulator
Artur Davoyan, Nader Engheta
Here, we propose a conceptual approach for design of an ultracompact nanoscale passive optical circulator based on the excitation of plasmonic resonances. We study a three-port Y-j…
Nonreciprocal rotating power flow within plasmonic nanostructures
Artur R. Davoyan, Nader Engheta
We theoretically explore the notion of nonreciprocal near-zone manipulation of electromagnetic fields within subwavelength plasmonic nanostructures embedded in magneto-optical mate…
Optical isolation with epsilon-near-zero metamaterials
Arthur R. Davoyan, Ahmed Mahmoud, Nader Engheta
We suggest a principle for isolation of circularly polarized waves in magnetically active extreme-parameter metamaterials. Using theoretical analysis and numerical simulations, we…