2 papers
physics.class-ph2026
Topological mode conservation and conversion in phononic crystals with temporal interfaces
Mahmoud M. Samak, Osama R. Bilal
A sudden change in material properties creates a temporal interface and forces a propagating wave to change its frequency while preserving its wavenumber. In contrast to monoatomic…
physics.app-ph2025
Observation of dispersion anomalies by design
Mahmoud M. Samak, Osama R. Bilal
Band structures encode electronic, optical, and acoustic properties of matter and can serve as an essential tool in material discovery and design. Dispersion anomalies -- sharp, no…