Electrical and electronic engineering

Researchers at ETH have created an antenna for light sources on a chip using an unusual placement of a semiconductor material. In the future, efficient nanoscale LEDs and lasers could be produced in this way.

Optical data communications lasers can transmit several tens of terabits per second, despite a huge amount of disruptive air turbulence. ETH Zurich scientists and their European partners demonstrated this capacity with lasers between the mountain peak, Jungfraujoch, and the city of Bern in Switzerland. This will soon eliminate the necessity of expensive deep-sea cables.

Researchers at PSI have refined a process known as photolithography, which can further advance miniaturisation in information technology.

Security of energy supply in a fossil-free Switzerland is feasible and affordable according to a new white paper from an expert group at the Energy Science Center. It will require increased production of renewables and efficient energy trading with neighbouring countries.

EPFL engineers have found a way to control the interactions between excitons – quasiparticles that may one day transport data and replace the electrons in electronic devices. The engineers’ method involves applying an electric field to a two-dimensional (2D) semiconducting material.