Light: Science & Applications

Pyramid scheme for brighter organic LEDs

The most common kind of light bulb in the United States—the incandescent—is only about 5 percent efficient. The phosphorescent organic light-emitting diode, on the other hand, makes light out of 100 percent ...

Jun 20, 2014
4.8 / 5 (21) 5

Quantum dots provide complete control of photons

By emitting photons from a quantum dot at the top of a micropyramid, researchers at Linköping University are creating a polarized light source for such things as energy-saving computer screens and wiretap-proof ...

Jan 31, 2014
4.8 / 5 (16) 2 | with audio podcast

A complete medical check-up on a chip

(Phys.org) —About the size of a stapler, this new handheld device developed at EFPL is able to test a large number of proteins in our body all at once-a subtle combination of optical science and engineering.

Mar 04, 2014
5 / 5 (12) 1