(Nanowerk Spotlight) A caustic is the envelope of light rays reflected or refracted by a curved surface or object, or the projection of that envelope of rays on another surface. A familiar example of ...

Multiple rays of light can coalesce and form bright focusing features known as caustics. These features are singularities of ray optics in the sense that their intensity, according to the ray ...

Researchers have found a way to control "caustics", the patterns that appear when light hits a water surface or any transparent material. Thanks to an elaborate algorithm, they can shape a transparent ...