This World S Smallest Optical Switch Uses Only A Single Atom Techworm
The scientists have developed the world’s smallest optical switch using a single atom and a modulator that is significantly smaller than the wavelength of light used in the system. This device converts information originally available in electrical form into optical signals. They do this by turning a laser on and off at the frequency of an incoming signal, thereby “modulating” the light to create an optical replication of the input transmission....