January 19, 2015

New Laser for Computer Chips

An international team of scientists constructs the first germanium-tin semiconductor laser for silicon chips (Nature Photonics, DOI: 10.1038/NPHOTON.2014.321)

Scientists from Forschungszentrum Jülich and the Paul Scherrer Institute in Switzerland in cooperation with international partners have presented the first semiconductor consisting solely of elements of main group IV. As a consequence, the germanium-tin (GeSn) laser can be applied directly onto a silicon chip and thus creates a new basis for transmitting data on computer chips via light: this transfer is faster than is possible with copper wires and requires only a fraction of the energy. The results have been published in the journal Nature Photonics.