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Leti has developed an infrared detector with avalanche photodiodes cooled to 180 K that successfully received data at 80 Mbps during NASA/ESA laser communications testing. This initial result is encouraging given that radio—which has been used for decades—can only handle to 100 Mbps. ESA, which has identified laser communication as a key technology, now plans […] >>

In just a few years, oceanographic sensors located 2,000 meters under the ocean’s surface could be powered by biobatteries feeding off of electroactive bacteria. Researchers at Leti are teaming up with a chemical engineering lab in Toulouse that is pioneering biobatteries that harvest their energy from deep ocean sediments. The next step will be to […] >>

Ternary oxides (In-X-Zn-O) are visibly-transparent semiconductors, making them promising candidates for optoelectronic applications. Researchers at Liten synthesized fourteen such oxides using a sol-gel method in order to study their electrical properties. The researchers worked with IMEP-LAHC to look at carrier mobility, which turned out to degrade exponentially as the number of defects at the oxide-insulator […] >>

Leti recently helped create a demonstrator for a local, on-the-fly speech processing system using a multicore platform similar to those used in today’s tablets. The demonstrator has a 5,000-word vocabulary and can decode speech at speeds that set a new record for embedded applications. Currently, the majority of speech recognition systems use remote servers, which […] >>

A team of researchers from INAC and Institut Néel have created a hybrid system that consists of a nano-sized quantum dot embedded in a gallium arsenide nanowire. When the wire vibrates, the quantum dot repeatedly stretches and compresses, changing its energy levels and consequently the color of the photons emitted. The coupling was achieved by […] >>