Waves close wavesVibrations that transfer energy from place to place without the transference of matter. - including sound and light - can be reflected at the boundary between two different materials.

Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens. from a ...

Abstract: Acoustic wave reflection techniques are widely used in extracting the acoustic constants and temperature coefficients of anisotropic crystals. To obtain these constants with the desired ...

Abstract: Metagratings (MGs), constructed from sparsely arranged unit cells with tailored structures, are known for their high efficiency in wavefront manipulation, even at large incident angles.