We have developed a new superconducting digital technology, Reciprocal Quantum Logic,
that uses ac power carried on a transmission line, which also serves as a clock. Using …

Superconducting detectors will play an increasingly significant role in astrophysics,
especially at millimeter through far-IR wavelengths, where the scientific opportunities …

This paper reviews and summarizes the progress in research on high-T c superconducting
infrared bolometers since the discovery of high-temperature superconductor (HTSC) …

The state-of-the art of terahertz heterodyne receivers are reviewed. Emphasis is placed on
front-end components such as mixers and local oscillators. The back-end technology is …

Clock distribution is central to digital technology and influences circuit performance,
interconnect overhead and efficiency. However, ensuring reliable clock distribution across …

The noise performance of a Nb hot-electron bolometer mixer at 2.5 THz has been
investigated. The devices are fabricated from a 12-nm-thick Nb film, and have a 0.30 μm× …

We have developed a low-noise 850 GHz superconductor–insulator–superconductor
quasiparticle mixer with NbTiN thin-film microstrip tuning circuits and hybrid Nb/AlN/NbTiN …

Intracavity absorption spectroscopy is a strikingly sensitive technique that has been
integrated with a two-wavelength setup to develop a sensor for human breath. Various …

We have fabricated and tested submillimeter-wave superconductor–insulator–
superconductor (SIS) mixers using very high-current-density Nb/AlN/Nb tunnel junctions (J …

Spectroscopic measurements in the millimeter, submillimeter, or THz range, with resolutions
exceeding a MHz, provide for highly specific detections of gas-phase absorption and …