Saarland University Team Generates Microwave Comb at Room Temperature

A microwave comb has been generated from a diamond maser at room temperature for the first time. Christoph W. Zollitsch and colleagues at Saarland University London and University College London demonstrated the capability with a broad frequency distribution exceeding four times ten to the power thirteen spins. Previously limited to optical regimes, such combs are now viable in microwaves compatible with modern communication technologies without cryogenics. The team have created microwave frequency combs using a diamond maser operating at room temperature, producing a…