• Energy and Environment
  • Transport and Mobility

Lille Optical Metrology (MéOL)



The MéOL platform is a national center of expertise in the field of optical and laser metrology applied to fluid mechanics, combustion and atmospheric physicochemistry. Our expertise covers scientific fields ranging from the study of complex flows and turbulence phenomena in wind tunnels and turbomachinery to the physico-chemical analysis of indoor/outdoor air and combustion processes. We are open to all academic and industrial collaborations and propose services in line with our expertise.


  • Christophe Cuvier
    Scientific manager
  • Pierre Braganca
    Technical manager
  • Amaury Lahccen
    Technical manager
  • Xavier Mercier
    Scientific manager


Bâtiments C5 et C11, Avenue Mendeleiev
Campus Cité scientifique, Université de Lille


Lille Optical Metrology

Chiffres clés

• 4 to 5 projects per year (mainly academic partners)
• 1 to 2 measurement campaigns per year (indoor / outdoor air)


Effectif total : 2



• Optical metrology
• Laser diagnostics in reactive media
• Spectroscopy
• Laser induced fluorescence (LIF)
• Cavity Ring-Down Spectroscopy (CRDS) laser absorption spectroscopy
• Infrared absorption by tunable diode laser (TDLAS) or by quantum cascade laser (QCLAS)
• Laser Induced Incandescence (LII)
• High rate fluorescence assays after gas expansion (FAGE)
• Multipass absorption
• Particle image velocimetry (PIV) as well as its variants: stereoscopic and tomographic PIV
• Lagrangian particle tracking (particle tracking velocimetry shake the box)
• Ultra-fast viewing
• Development of innovative measurement tools

Example(s) of projects

• Characterization of soot particle formation processes in combustion processes
• Characterization of the emission of particles leaving a diesel vehicle
• Digital holography measurement in the Italian superpipe Ciclope
• Laboratory and field study of oxidation processes involving HOx radicals using the FAGE technique

Collaborations/Partners/Scientific clients


Collaborations/Partners/Private Clients


Services offers

Applications sectors

  • Aeronautics / Aerospace
  • Education / Training
  • Science / Research

Services provided

• Complex flow study by PIV
• Physico-chemical analysis of indoor / outdoor air
• Analysis of turbulence phenomena in a wind tunnel
• Study of combustion processes by laser diagnostics (FIL, CRDS, cw-CRDS, IIL ...)
• Study of the measurement of atmospheric pollutants by laser diagnostics (FIL, cw-CRDS, FAGE, etc.)
• Detailed study of turbulence using high resolution particle image velocimetry (PIV, SPIV, tomoPIV, STB)
• Quantitative measurement of polycyclic aromatic hydrocarbons (PAHs)
• Measurement of radical species (OH, HO2, etc.) in the atmosphere

Training offers

• Training of academic and industrial staff in optical metrology
• CNRS training: Initiation to laser spectroscopy methods for the study of reactive media

Consulting services

We provide consulting services related to all our areas of expertise.


We possess a wide range of equipment:
• Experimental setups coupling Laser Induced Fluorescence (LIF) and Cavity Ring-Down Spectroscopy (CRDS) for stable species (PAHs), radicals (OH, CH, CN, NCN, NCO…) and atomic (H, O) generated by combustion processes
• Experimental setups of Laser Induced Incandescence (LII) for soot particle measurements
• Fluorescence Assay after Gas Expansion (FAGE) for OH measurement in the atmosphere and its reactivity
• Experimental setups for 2D2C and 2D3C PIV, tomoPIV and time-resolved tomoPIV for the study of wall turbulence, wake and turbomachinery


Nom Modèle Marque
Laser BMI
Laser Quantronix Darwin duo Quantronix
UV power dye laser Spectra Physics
Camera V2640 Phantom
UV dye laser Quantel laser
Dye laser Quantel laser
Fast PIV system (4 miros M340) Phantom
6 sCMOS cameras LaVision
High sensitivity camera
Laser Innolas splitlight PIV 400 Innolas
Laser Innolas Blizz Innolas


Affiliated institutions / organisations

Centrale Lille

Unit(s) of attachment


GDR 2865 - Phénoménologie de la turbulence
GDR 2502 - Contrôle des décollements


Regional strategic areas of activity

  • Energy and Environment
    • Observation, monitoring and management of the environment
  • Transport and Mobility
    • Reduction of pollution and energy consumption