Room-Temperature Solid-State Maser Amplifier

Room-Temperature Solid-State Maser Amplifier

Blog Article

Masers once represented the state of the art in low-noise microwave amplification biomat for sale technology but eventually became obsolete due to their need for cryogenic cooling.Masers based on solid-state spin systems perform most effectively as amplifiers, since they provide a large density of spins and can, therefore, operate at relatively high powers.While solid-state maser oscillators have been demonstrated at room temperature, continuous-wave amplification in these systems has only ever been realized at cryogenic temperatures.

Here, we report on a continuous-wave solid-state maser amplifier operating at room temperature.We achieve this feat using a practical setup that includes an ensemble of nitrogen-vacancy center spins in a diamond crystal, a strong permanent magnet, and a simple laser diode.We describe important amplifier characteristics including gain, bandwidth, compression power, and noise temperature and discuss the prospects of realizing a room-temperature near-quantum-noise-limited amplifier with this system.

Finally, we show that in click here a different mode of operation the spins can be used to reduce the microwave noise in an external circuit to cryogenic levels, all without the requirement for physical cooling.