Echoless Light Observed For The First Time

Physics





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EWS light modes inside an optic fiber / CUDOS

For the first time, scientists have observed an echoless state of light, something that could improve the quality of signals in technologies such as Wi-Fi routers, mobile phones, and lasers. On top of that, it could be used in several medical applications.

The phenomenon, known as Eisenbud-Wigner-Smith (EWS) states, was first theorized in 1948. A wave in this state will reach its destination unchanged, independently of the scattering it might have experienced during transmission.