Solar absorbers are designed for absorbing visible, infrared, and ultraviolet frequencies.
Most of the absorbers designed so far have been for absorbing visible frequencies, and …

The mechanical tidal effects of gravitational waves (GWs) in the low-and middle-frequency
bands, typically from dozens to hundreds of Hz, have been detected by the LIGO-Virgo …

Josephson junctions from high-temperature superconductors allow the characterization of
frequency and power of high-frequency electromagnetic radiation in the THz range by …

We propose a broadband end-fire antenna for continuous-wave terahertz (THz) photomixing–
based devices working in the frequency range of 0.5–1 THz. A compact Vivaldi antenna is …

Superconducting thin films are widely applied in various fields, including switching devices,
because of their phase transition behaviors in relation to temperature changes. Therefore, it …

A high-performance S-band down-conversion microstrip mixer, for operation from 77 K to
300 K, is described. The balanced mixer combines a 90 degree hybrid coupler, two Schottky …

Featured Application Experimental results prove that major improvement of THz radiation
detection can be obtained by the optimal design of planar antenna with HTSC Josephson …

Modern space-based telescopes operating in the terahertz (THz) spectral range require
highly reflecting and cryogenically cooled optics ensuring extremely low noise. The idea of …

A superconducting sensing circuit using silicon microring-embedded gold-island space–
time control is proposed for a low-current source sensor. Feeding an optical field centered at …

An innovative method to improve the efficiency of a single-phase electric-grid 125 kVA, 50
Hz shell type and distribution transformer is presented. The diamagnetism characteristic of a …