September 14, 2017
The electronics industry has driven the digital revolution for an unprecedented success based on Si. As a result, there has been a tremendous effort to broaden the reach of Si technology to build integrated optic and photonic circuits. Supported by Air Force Office of Scientific Research (AFOSR) National Aeronautics and Space Administration (NASA) Established Program to Stimulate Competitive Research (EPSCoR), and National Science Foundation (NSF), researchers from a multi-institutional team have demonstrated infrared lasers made of the inexpensive germanium tin (GeSn) alloy grown on silicon (Si) substrates. The laser operation wavelength coverage is from 2 to 3 micron, with the maximum operating temperature reaching 180 Kelvin.
September 11, 2017
For the first time, an international team led by engineers at Caltech has developed a computer chip with nanoscale optical quantum memory.