Laboratoire d’Électronique et Traitement du Signal  (LETS)

Laboratoire d’Électronique et Traitement du Signal (LETS)

Laboratoire d'Électronique et Traitement du Signal (LETS) stands for Signal Processing and Electronic Laboratory.

It focuses its researches and development on real-time signal processing, especially for scientific instruments and measurement devices, mostly in basic physics and optics. Developments involve both analogue and digital signal processing, covering all the acquisition chain which may comprises preamplifiers, Analogue-to-Digital Converter (ADC), Digital-to-Analogue Converter (DA), microcontroller, microprocessors of Field-Programmable-Gate-Arrays (FPGAs). Subsequent domains are also covered such as computer science including data processing, especially machine learning for identifications.

Laboratory’s main room, with soldering, assembling and test and measurement areas.
  • As a research lab it aims at developping new approaches for signal processing to achieve the best possible results in basic physic experiments.
  • As a support and service lab, It aims at designing re-usable design blocks, especially in digital signal processing that can be transposed to different basic physic experiments. All the IRAMIS institute can benifit from the LETS expertise and developments.

The LETS is ilocated n the Building 772, 1st floor, in the CEA “Orme des merisiers”.

LETS members.

Membres

Aucun résultat

Projets

Domaines Techniques

  • AO-MBE Oxydes  @ SPEC / LNO

    AO-MBE Oxydes @ SPEC / LNO

    La technique de l’épitaxie par jets moléculaires ou MBE en anglais (Molecular Beam Epitaxy) a été développée initialement pour la croissance cristalline des semi-conducteurs. Il s’agit d’une…

  • Banc multiferroïque

    Banc multiferroïque

    Les oxydes de structure cristalline pérovskite sont très étudiés car ils adoptent une structure relativement simple et possèdent généralement des propriétés ferroïques remarquables (ferromagnétisme,…

  • Instrumentation

    Pour les besoins de leurs recherches, les équipes de l’IRAMIS développent une instrumentation originale. On notera en particulier : la métrologie laser (impulsions laser ultra-courtes – attoseconde,…

  • Magnetometry

    Magnetometry

    The magnetic properties of bulk samples and thin films can be studied by Vibrating Sample Magnetometry (VSM) or Magneto-optic Kerr effect (MOKE). Two VSM measuring devices are available in the…

  • SPEC Nanofab

    SPEC Nanofab

    [Accès au Wiki de l’AdN] Le SPEC s’est progressivement équipé d’un atelier de nanofabrication qui permet aux groupes de recherche d’y réaliser leurs échantillons. Cette installation du CEA, labellisée “centrale de proximité” en 2004 par le Ministère de l’Enseignement Supérieur et de la Recherche bénéficie également du soutien du CNRS, de la région Ile de…

  • Spectrométrie de photoélectrons X  (XPS)

    Spectrométrie de photoélectrons X (XPS)

    La spectrométrie XPS (X-Ray Photo-electron Spectroscopy) La spectroscopie XPS permet de mesurer le nombre d’électrons émis dans un intervalle d’énergie en fonction de l’énergie de liaison des…

  • Vibrating sample magnetometry

    Vibrating sample magnetometry

    The object of this vibrating sample magnetometer (VSM, DMS Society) is to determine according to the applied magnetic field and the temperature, the magnetic properties of thin layers and small…

Thèses

Thèmes de recherche

  • Active Matter

    Active Matter

    Our work on active matter remains at the edge of the still rapid evolution of the field. Our main lines of research were: i) building and analysis of minimal models and theories describing the generic and universal physics of active systems, i.e., quantitative and qualitative properties that are independent of system-details; ii) model building for…

  • Disordered solids: glasses around Tg or Pg

    Disordered solids: glasses around Tg or Pg

    Glasses are everywhere in our daily life, from ordinary windowpanes to granular materials. What unifies them is their elusive nature: they are not crystalline solids, yet they hardly flow. Whether they are merely hyper-viscous liquids or form an intrinsic state of matter largely remain open issue. To shed light on this fundamental question, we have…

  • Failure of disordered solids

    Disordered solids are everywhere in our daily life, from ordinary windowpanes to granular materials. They play such a significant role that the United Nations declared 2022 to be the International Year of the Glass (IYOG2022).  Understanding how disordered solids break is also a major focus in our group. The complexity here stems from the multi-scale…

  • Organic and molecular electronics

    Organic and molecular electronics

    With organic and molecular electronics, a data processing based on various types of nano-objects (molecules, biomolecules, nanoparticles, carbon nanotubes, graphene,…) is emerging. This means…

  • Physics and life

    Physics and life

    Threeresearch programsof the IRAMIS found an natural extension towards biology: Molecular engineering, where studies of co-operative interactions of molecules in solution found a direct extension…

  • Turbulence and Geophysical Flows

    Turbulence and Geophysical Flows

    The dynamics of turbulent flows remains an outstanding challenge of out-of equilibrium physics with important implications for industrial and natural settings. The research carried out at SPHYNX aims to characterize the energy pathways of such turbulent flows from the large injection scale to the tiny erratic dissipative structures. Focusing on flows driven by thermal convection,…