English: An artist's rendition of the new light-bending metamaterial. While developing new lenses for next-generation sensors, researchers have crafted a layered material that causes light to refract, or bend, in a manner not found in nature. Developed by researchers at NSF's Mid-Infrared Technologies for Health and the Environment Engineering Research Center and NSF's Princeton Center for Complex Materials Research Science and Engineering Center. Negative refraction. New metamaterial is used for construction. Photo Credit: Keith Drake