Transmission properties of space-time modulated metamaterials
- Resource Type
- Working Paper
- Authors
- Ammari, Habib; Cao, Jinghao; Zeng, Xinmeng
- Source
- Subject
- Mathematics - Analysis of PDEs
Condensed Matter - Materials Science
Mathematical Physics
35J05, 35C20, 35P20, 74J20
- Language
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 amplitude of the time modulation at the degenerate points of the folded band structure. Our analysis provides the first proof of existence of k-gaps in the band structures of space-time modulated systems of subwavelength resonators.
Comment: 22 pages, 8 figures. arXiv admin note: text overlap with arXiv:2109.07220