Ultrashort flashes of light lasting less than a quadrillionth of a second are fast growing in technological importance. In laser sources, pairs and groups of light flashes can be created instead of individual flashes. Similar to the chemically bonded atoms in a molecule, they are coupled with each other and their short temporal intervals can possess remarkable stability. Researchers at the Universities of Bayreuth and Constance have now revealed a cause for the stable coupling of ultrashort light flashes and found a way to control their spacing both very precisely and rapidly. They present their research results in the journal Optica.
Click here for original story, Separated only by quadrillionths of a second: Ultrashort flashes of light combined precisely and quickly
Source: Phys.org