from The New York Times
Metamaterials, which could improve smartphones and change how we use other technology, allow scientists to control light waves in new ways.
Imagine operating a computer by moving your hands in the air as Tony Stark does in “Iron Man.” Or using a smartphone to magnify an object as does the device that Harrison Ford’s character uses in “Blade Runner.” Or a next-generation video meeting where augmented reality glasses make it possible to view 3-D avatars. Or a generation of autonomous vehicles capable of driving safely in city traffic.
These advances and a host of others on the horizon could happen because of metamaterials, making it possible to control beams of light with the same ease that computer chips control electricity.
The term metamaterials refers to a broad class of manufactured materials composed of structures that are finer than the wavelength of visible light, radio waves and other types of electromagnetic radiation. Together, they are now giving engineers extraordinary control in designing new types of ultracheap sensors that range from a telescope lens to an infrared thermometer.