A new type of polymer material that can be patterned using gentle visible light, creating stable hidden images visible only ...

Physicists have taken a step that sounds like science fiction: they have coaxed light into behaving as a “supersolid,” a ...

Growing concern about data theft and counterfeiting has inspired increasingly sophisticated security technologies, like hologram seals, that can help verify the authenticity of currency, passports and ...

In the International Journal of Extreme Manufacturing, researchers fabricate 3D hydrogel-based biomimetic Turing nanowrinkled ...

A flexible optical identifier uses polarized emission from self-assembled crystal films to create two stable states that support tri modal authentication and improve reliability in secure device ...