News :

Optically-coupled photonic chips cannot currently be tested at wafer level. Instead, they must be cut, packaged, and then tested individually. CEA-Leti successfully demonstrated an automated testing solution that removes this hurdle. A custom probe from Teem Photonics ensures very broad bandwidth and unparalleled measurement dynamics of more than 60 dB. It is capable of characterizing […] >>

Regular quantum dots are more stable under optical excitation than organic fluorophores; however, the dots cannot be used in biological environments because they can contain toxic metals like cadmium and lead. Several teams of researchers at Irig are putting their heads together to overcome this hurdle. They synthesized core-shell quantum dots that contain three non-toxic […] >>

When it comes to the performance of semiconducting nanowires, much progress is still to be made, mainly because the nanowires’ surfaces have not been optimized. LMGP, IMEP-LaHC, and two Paris-based labs* are addressing the fundamental surface changes that affect semiconducting nanowires. Their work is part of the ANR (French national research agency) Scenic project, which […] >>

One of the main IoT communication protocols, narrowband IoT, could, with a few minor tweaks, be used for satellite links. A recent study by CEA-Leti for CNES, France’s national center for space studies, leveraged simulation techniques to show that it is possible for a constellation of satellites orbiting a few hundred kilometers above the Earth […] >>

Researchers from CEA-Leti, Irig, and LTM recently worked with a team in Lausanne* to develop a lensless device capable of reducing the time it takes to identify active phages on antibiotic-resistant bacteria at least threefold. The large-area image sensor (24×36 mm2) reads the optical signature of areas occupied by bacterial debris. The technique could be […] >>