Negative refraction of elastic waves has been studied and experimentally demonstrated in three- and two-dimensional phononic crystals, but Bragg scattering is impractical for low-frequency wave ...

Refraction is described and students learn to draw diagrams of refracted waves. Refraction is described and students learn to draw diagrams of refracted waves. They also learn to describe diffraction ...

The interface between two facets of an artificial material known as a “Weyl phononic crystal” can not only negatively refract an airborne sound wave, it does so without reflecting it at all. This ...

The first experimental verification of Snell’s law for spin waves has been carried out by an international team of researchers. By imaging the incident, refracted and reflected waves at interfaces in ...

This is a preview. Log in through your library . Abstract Photonic time-crystals (PTCs) are spatially homogeneous media whose electromagnetic susceptibility varies periodically in time, causing ...

Designing scramjets with extremely high-speed propulsion just got easier: Numerical simulations show the effects of shockwaves on fluid vortices and detail the complex wave forms and chemical ...