3 papers
eess.SP2026
Non-Reciprocal Dynamic Metasurface Antenna: Practical Multiport-Network Modeling and Optimization for Multi-User Interference Resilience
Shuai S. A. Yuan, Jean Tapie, Bahman Amrahi +2
Channel reciprocity fundamentally limits full-duplex (FD) base stations due to multi-user co-channel interference. We examine the potential of deploying a non-reciprocal dynamic me…
physics.optics2025
Strong Mode Coupling via Quasi-Bound States in the Continuum in Bianisotropic Metasurfaces
Luis Manuel Máñez-Espina, Bahman Amrahi, Viktar Asadchy +1
Electromagnetic mode coupling plays a key role in many resonant effects in nanophotonics. This coupling is also responsible for the appearance of bianisotropy, where electric and m…
physics.optics2025
Giant bias-free nonreciprocity for unpolarized light via synthetic motion
L. M. Máñez-Espina, B. Amrahi, I. Faniayeu +4
Reciprocity breaking at optical frequencies typically relies on bulky magnets, dynamic modulation, or nonlinearities, all of which hinder chip-scale integration and the handling of…