10 citations · 14 across the 8 of their papers we have counts for
9 papers
Effective Medium Theory for Time-modulated Subwavelength Resonators
Habib Ammari, Jinghao Cao, Erik Orvehed Hiltunen +1
This paper provides a general framework for deriving effective material properties of one-dimensional, time-modulated systems of subwavelength resonators. It applies to subwaveleng…
Scattering from time-modulated subwavelength resonators
Habib Ammari, Jinghao Cao, Erik Orvehed Hiltunen +1
We consider wave scattering from a system of highly contrasting resonators with time-modulated material parameters. In this setting, the wave equation reduces to a system of couple…
The Non-Hermitian Skin Effect With Three-Dimensional Long-Range Coupling
Habib Ammari, Silvio Barandun, Jinghao Cao +3
We study the non-Hermitian skin effect in a three-dimensional system of finitely many subwavelength resonators with an imaginary gauge potential. We introduce a discrete approximat…
Mathematical foundations of the non-Hermitian skin effect
Habib Ammari, Silvio Barandun, Jinghao Cao +2
We study the skin effect in a one-dimensional system of finitely many subwavelength resonators with a non-Hermitian imaginary gauge potential. Using Toeplitz matrix theory, we prov…
Transmission properties of time-dependent one-dimensional metamaterials
Habib Ammari, Jinghao Cao, Erik Orvehed Hiltunen +1
We solve the wave equation with periodically time-modulated material parameters in a one-dimensional high-contrast resonator structure in the subwavelength regime exactly, for whic…
Edge modes in subwavelength resonators in one dimension
Habib Ammari, Silvio Barandun, Jinghao Cao +1
We present the mathematical theory of one-dimensional infinitely periodic chains of subwavelength resonators. We analyse both Hermitian and non-Hermitian systems. Subwavelength res…
Transmission properties of space-time modulated metamaterials
Habib Ammari, Jinghao Cao, Xinmeng Zeng
We prove the possibility of achieving exponentially growing wave propagation in space-time modulated media and give an asymptotic analysis of the quasifrequencies in terms of the a…
Unidirectional edge modes in time-modulated metamaterials
Habib Ammari, Jinghao Cao
We prove the possibility of achieving unidirectional edge modes in time-modulated supercell structures. Such finite structures consist of two trimers repeated periodically. Because…
Non-reciprocal wave propagation in space-time modulated media
Habib Ammari, Jinghao Cao, Erik Orvehed Hiltunen
We prove the possibility of achieving non-reciprocal wave propagation in space-time modulated media and give an asymptotic analysis of the non-reciprocity property in terms of the…