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Physics - 27.01.2023
Ultrafast control of spins in a microscope
Researchers at EPFL have developed a new technique that can visualize and control the rotation of a handful of spins arranged in a vortex-like texture at the fastest speed ever achieved. The breakthrough can advance "spintronics", a technology that includes new types of computer memory, logic gates, and high-precision sensors.

Physics - 16.01.2023
Deflecting lightning with a laser lightning rod
Deflecting lightning with a laser lightning rod
A European consortium led by UNIGE, école Polytechnique (Paris), EPFL, hes-so and TRUMPF has managed to guide lightning using a high-power laser installed at the top of Mount Säntis in Switzerland. Forest fires, power cuts and damaged infrastructure...lightning fascinates and destroys in equal measure, causing as many as 24,000 deaths a year worldwide not to mention widespread destruction.

Physics - Computer Science - 12.01.2023
Integrated photonic circuits could help close the 'terahertz gap'
Integrated photonic circuits could help close the 'terahertz gap'
Researchers have collaborated with those at Harvard and ETH Zurich on a new thin-film circuit that, when connected to a laser beam, produces finely tailorable terahertz-frequency waves. The device opens up a world of potential applications in optics and telecommunications. Researchers led by Cristina Benea-Chelmus in the Laboratory of Hybrid Photonics ( HYLAB ) in EPFL's School of Engineering have taken a big step toward successfully exploiting the so-called terahertz gap, which lies between about 300-30,000 gigahertz (0.3 to 30 THz) on the electromagnetic spectrum.

Chemistry - Physics - 04.01.2023
A step towards solar fuels out of thin air
A step towards solar fuels out of thin air
EPFL chemical engineers have invented a solar-powered artificial leaf, built on a novel electrode which is transparent and porous, capable of harvesting water from the air for conversion into hydrogen fuel. The semiconductor-based technology is scalable and easy to prepare. A device that can harvest water from the air and provide hydrogen fuel-entirely powered by solar energy-has been a dream for researchers for decades.