The invention of tiny devices capable of precisely controlling the direction and behavior of light is essential to the development of advanced technologies. Researchers at the Advanced Science ...

Researchers have built a paper-thin chip that converts infrared light into visible light and directs it precisely, all without mechanical motion. The design overcomes a long-standing efficiency-versus ...

After 16 weeks of testing, we noticed visible results. Here are our favorite red light therapy devices for hair growth.

Invisible light beyond the range of human vision plays a vital role in communication technologies, medical diagnostics, and optical sensing. Ultraviolet and near-infrared wavelengths are routinely ...

Researchers from the Advanced Science Research Center at CUNY Graduate Center (CUNY ASRC) have made a breakthrough in the design of nonlinear metasurfaces. Described in eLight, the team's device is a ...

A rendering of the metasurface chip in action. When hit with an infrared laser, the microscopic chip converts the incoming light to a higher frequency and sends it out as a narrow beam that can be ...

LED masks seem to be the “it” skin care device of the moment. In general, they’ve been shown to stimulate skin’s collagen and elastin production using specific wavelengths of light, which correlate to ...

Wearing an LED face mask may look as though you've stepped out of an Alfred Hitchcock thriller, but actually, what it's doing to improve the appearance of your skin is far from horrifying. Reigning ...

Want more tried and tested recommendations from the Editors of Women’s Health? Sign up to our monthly newsletter The Edit. Click here to subscribe. After hitting a milestone age (woo!) I've noticed ...