The team of quantum experts have developed a device known as a maser which uses a specially created purple diamond to amplify weak microwave signals, such as those which can come from deep space.

an innovative maser device makes use of a lab-grown purple diamond that is capable of amplifying weak microwave signals by 1000 times. These signals come from deep-space objects like pulsars ...

Lawrence Livermore National Laboratory’s space hardware team has delivered a payload for NASA’s Pathfinder Technology Demonstrator-R satellite. LLNL developed the optical payload, called Deep Purple – ...

It seems like a science fiction MacGuffin: it uses a purple diamond in a quartz tube ... now well into interstellar space. Their amplifiers are key to getting the signal out, but require very ...