Graphene light detector could enable contacts for seeing in infrared and ultraviolet
The first room-temperature detector that can sense the full infrared spectrum has the potential to put heat vision into a contact lens. Unlike comparable detectors currently on the market, this detector developed by researchers doesn't need cooling equipment to work.
"We can make the entire design super-thin," said Zhaohui Zhong, assistant professor of electrical engineering and computer science. "It can be stacked on a contact lens or integrated with a cell phone."
Infrared light starts at wavelengths just longer than those of visible red light and stretches to wavelengths up to a millimeter long. Infrared vision may be best known for spotting people and animals in the dark and heat leaks in houses, but it can also help doctors monitor blood flow, identify chemicals in the environment and allow art historians to see Paul Gauguin's sketches under layers of paint.