59 citations · 178 across the 34 of their papers we have counts for
6 papers · 1 filter
Wave interaction with subwavelength resonators
Habib Ammari, Bryn Davies, Erik Orvehed Hiltunen +2
The aim of this review is to cover recent developments in the mathematical analysis of subwavelength resonators. The use of sophisticated mathematics in the field of metamaterials…
High-order exceptional points and enhanced sensing in subwavelength resonator arrays
Habib Ammari, Bryn Davies, Erik Orvehed Hiltunen +2
Systems exhibiting degeneracies known as exceptional points have remarkable properties with powerful applications, particularly in sensor design. These degeneracies are formed when…
Asymptotic links between signal processing, acoustic metamaterials and biology
Habib Ammari, Bryn Davies
Biomimicry is a powerful science that takes advantage of nature's remarkable ability to devise innovative solutions to challenging problems. In this work, we use asymptotic methods…
Exceptional points in parity-time-symmetric subwavelength metamaterials
Habib Ammari, Bryn Davies, Erik Orvehed Hiltunen +2
When sources of energy gain and loss are introduced to a wave-scattering system, the underlying mathematical formulation will be non-Hermitian. This paves the way for the existence…
Robust edge modes in dislocated systems of subwavelength resonators
Habib Ammari, Bryn Davies, Erik Orvehed Hiltunen
Robustly manipulating waves on subwavelength scales can be achieved by, firstly, designing a structure with a subwavelength band gap and, secondly, introducing a defect so that eig…
Close-to-touching acoustic subwavelength resonators: eigenfrequency separation and gradient blow-up
Habib Ammari, Bryn Davies, Sanghyeon Yu
In this paper, we study the behaviour of the coupled subwavelength resonant modes when two high-contrast acoustic resonators are brought close together. We consider the case of sph…