Single light wave flashes out from fibre laser

日期:2019-03-08 06:01:02 作者:桂昨 阅读:

A PULSE of light so short that it contains just a single oscillation of a light wave has been produced. The flash is almost as short as a light pulse can be, according to the laws of physics, and could be used to sense a photon interacting with an electron, says Alfred Leitenstorfer of the University of Konstanz in Germany, whose team pulled off the feat. The researchers split pulses from a single fibre laser between two sets of fibres containing atoms of erbium, which amplified the light waves. Each fibre had a second stage, one stretching,