News : Emerging materials and processes for nanotechnologies and microelectronics

January 01 2023

Photonic Spiking Neural Networks based on Q-switched laser integrated on Silicon

Neuromorphic networks for signal and information processing have acquired recently a renewed interest considering the more and more complex tasks that have to be solved automatically in current applications: speech recognition, dynamic image correlation, rapid decision processing integrating a plurality of information sources, behavior optimization, etc… Several types of neuromorphic networks do exist and, among […] >>

January 01 2023

µLaue diffraction and excited luminescence in nitrides optoelectronics: physics, operando, serial crystallography

The Laue microdiffraction instrument (µLaue), installed at the European Synchrotron (ESRF) in Grenoble (BM32 beamline), is unique in Europe and probes the matter by diffracting a polychromatic X-ray beam of a few hundred nanometers. The acquisition of the Laue diffraction diagram is very fast and allows scanning the samples with high precision to get the […] >>

August 26 2022

Strain driven Group IV photonic devices: applications to light emission and detection

Straining the cristal lattice of a semiconductor is a very powerfull tool enabling controlling many properties such as its emission wavelength, its mobility…Making strain amplification microstructures is a rather recent technique allowing accumulating very significant amounts of strain in a micronic constriction, such as a microbridge (up to 4.9% for Ge [1]), which deeply drives […] >>
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