The technology is not entirely new. Such lasers have existed before, but they were bulky, high-powered devices housed in large, expensive facilities that made them impractical for daily use or mass applications. The new device, however, uses only a thin piece of wire about 8cm (3.1 inches) in length, to emit laser-like light in a broad range of wavelengths for a wide variety of applications. Typical laser light is normally restricted in these areas. A team of honor guards Research co-author Ye Tian told the Shanghai Observer that his invention achieved this breakthrough by finding a way to sync electrons...