IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This is a ruby crystal from Theodore ...

Light's shadow: Researchers showed that a laser beam can sometimes act like a solid object and cast a shadow that is visible to the naked eye. In the picture, the shadow appears as the horizontal line ...

Exclusive to optics.org: Innovative intra-cavity design has produced a continuous-wave ruby laser, with other novel sources set to follow. A new source developed by Germany-based laser supplier ...

Fifty years ago Sunday, a Hughes Labs researcher named Theodore Maiman changed the world. That day, Maiman became the first person on Earth to build a working laser, something that colleagues at a ...