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Physics - Electroengineering - 22.09.2022
Ultracold circuits
Ultracold circuits
Cooling materials to extremely low temperatures is important for basic physics research as well as for technological applications. By improving a special refrigerator and a low-temperature thermometer, Basel scientists have now managed to cool an electric circuit on a chip down to 220 microkelvin - close to absolute zero.

Electroengineering - Materials Science - 30.08.2022
Green electronics made from wood
Green electronics made from wood
Sustainable electronic components can be made from wood with the help of a novel process that uses a laser to engrave electrically conductive structures on veneers. A research team at Empa and at ETH's Institute for Building Materials has developed a practical and versatile method for making wooden surfaces electrically conductive.

Physics - Electroengineering - 17.06.2022
Boosting light power revolutionizes communications and autopilot
Boosting light power revolutionizes communications and autopilot
Scientists have built a compact waveguide amplifier by successfully incorporating rare-earth ions into integrated photonic circuits. The device produces record output power compared to commercial fiber amplifiers, a first in the development of integrated photonics over the last decades. Erbium-doped fiber amplifiers (EDFAs) are devices that can provide gain to the optical signal power in optical fibers, often used in long-distance communication fiber optic cables and fiber-based lasers.

Materials Science - Electroengineering - 14.03.2022
Scientists create new lead-free piezoelectric materials
Scientists create new lead-free piezoelectric materials
Researchers have discovered that gadolinium-doped cerium oxide, a compound they created in the lab, could be a promising alternative to certain piezoelectric materials: it has the same proprieties yet may be 100 times more effective. It's also lead-free, unlike the best piezoelectric materials, which means that it could be employed in bio-compatible medical applications.