Researchers invented a technique that uses a specialized light projector and a photosensitive chemical additive to imprint two- and three-dimensional images inside any polymer. The light-based ...

3D printing, an additive manufacturing (AM) technique, has the potential to revolutionize how we produce objects that we want and need in the modern world. Among other developments, innovations in ...

A two-dimensional light engraving (left) suspended in a polymer film. The original photo (right) was projected into the film using a red- and blue-light projector that activates a photosensitive ...