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physics.app-ph2024
Reconfigurable Superdirective and Superabsorptive Aperiodic Metasurfaces
Yongming Li, Xikui Ma, Xuchen Wang +1
In this paper, we present a general theory of aperiodic subwavelength arrays for controlling electromagnetic waves. The considered platform is formed by an array of electrically sm…
physics.app-ph2024
Going Beyond Perfect Absorption: Reconfigurable Super-directive Absorbers
Yongming Li, Xikui Ma, Xuchen Wang +1
In the context of electromagnetic absorption, it is obvious that for an infinite planar periodic structure illuminated by a plane wave, the maximum attainable absorptance, i.e., pe…
physics.app-ph2024
Simultaneous High-Efficiency Anomalous Reflection and Angle of Arrival Sensing in Reconfigurable Intelligent Surfaces
Mostafa Movahediqomi, Yongming Li, Grigorii Ptitcyn +2
In this work, we introduce reconfigurable intelligent surfaces designed to simultaneously perform reflection of single or multiple incident waves toward the receiver or receivers a…