NIST researchers have developed a tiny superconducting thermometer that can measure temperatures as low as 50 millikelvin, with potential applications in quantum computing and other fields. The miniature device, measuring just 2.5 by 1.15 millimeters, can be embedded in or attached to other cryogenic microwave devices to monitor their temperature. Unlike conventional sub-Kelvin thermometers, this new technology doesn’t require additional wiring, making it less complex and potentially causing less interference. The NIST thermometer can measure temperature in about 5 milliseconds, much faster than conventional resistive thermometers. It can also be mass-produced, with over 1,200 devices fitting on a single 3-inch silicon wafer. This innovation has the potential to revolutionize quantum computing and other low-temperature sensor applications.
Source: https://www.nist.gov/news-events/news/2020/11/nist-sensor-experts-invent-supercool-mini-thermometer
Keywords: superconducting, thermometer, temperature, niobium, resonator
