Researchers have cracked a fundamental optical challenge: how to control both angle and wavelength of light independently—a ...

With improvements, Stone said, the technique should produce visible-light wavelengths accurate to better than 99.9% of their target values, ...

Scientists have combined two light wavelengths to deactivate a bacterium that is invulnerable to some of the world’s most widely used antibiotics, giving hope that the regime could be adapted as ...

Some of that light is the near-infrared – wavelengths that we cannot see, but sense as heat – and some is in the visible range, between 380 nanometers and about 750 nanometers.