Color-changing mood rings, forehead fever strips and car-shade indicators all change hues as they warm and cool, thanks to a ...

Traditional fiber-optic communication sends data using just one light pattern. That’s fine, but it means the amount of bandwidth that a fiber strand can deliver is limited. If you could add more light ...

A team of researchers has developed a way to significantly increase the memory of speckle patterns, the very complex patterns that result from shining a laser light onto an opaque sheet, such as paper ...

A new optical device allows researchers to generate and switch between two stable, donut-shaped light patterns called skyrmions. These light vortices hold their shape even when disturbed, making them ...

Researchers used the Poisson spot effect to create stable optical skyrmions with a laser and disc, simplifying studies for ...

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 ...

Zoe Kleinmann and a student make a pattern of light with translucent cups. Zoe Kleinmann and a student explore patterns. First they create units of two connected plastic cubes to create an AB pattern.

The common problems with bike lights seem miniscule until you’re riding down a moonless, unlit street and your light slowly goes from glowing white, to sad yellow, to nonexistent. Basically, you take ...