Room-Temperature Solid-State Maser Amplifier
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2024-12-18 |
| Journal | Physical Review X |
| Authors | Tom Day, Maya Isarov, William J. Pappas, Brett C. Johnson, Hiroshi Abe |
| Institutions | MIT University, UNSW Sydney |
| Citations | 5 |
Abstract
Section titled āAbstractāMasers once represented the state of the art in low-noise microwave amplification 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 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. Published by the American Physical Society 2024
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2008 - Low-Noise Systems in the Deep Space Network
- 2009 - Tools of Radio Astronomy
- 2013 - Deep Space Telecommunications Systems Engineering
- 1964 - Microwave Solid-State Masers
- 1983 - 1983 IEEE MTT-S International Microwave Symposium Digest