Contact

Scientific Leaders

Marc Dussauze : marc.dussauze@u-bordeaux.fr

Overview

The equipment available at the SIV platform enables chemical analysis through the vibrational spectra of atomic structures (molecules, glasses, crystals, etc.). Virtually all fields of chemistry can benefit from vibrational spectroscopy analytical methods.

The platform is based on two complementary techniques: Fourier-transform infrared (FTIR) absorption spectroscopy and Raman scattering spectroscopy.

Our spectrometers are coupled with state-of-the-art imaging systems, allowing for 2D chemical mapping of material surfaces (and 3D for transparent samples) with sub-micrometric spatial resolution (specific to Raman spectrometers). We offer a wide range of excitation sources for Raman analysis (UV, visible, near-IR), enabling adaptation to all types of samples. Similarly, our infrared analyses can be conducted in the far, mid, or near-IR ranges, and we have all the necessary accessories to analyze samples in various forms (ATR, reflection, etc.).

Additionally, SIV provides access to highly specialized instruments that require the assistance of platform staff due to their high technical complexity. These include:

  • Chirality studies using Raman optical activity (ROA) and/or vibrational circular dichroism (VCD)
  • Coupled AFM microscopy/optical microscopy/Raman spectroscopy systems for nanoscale Raman analysis via plasmonic enhancement (TERS)
  • Characterization of molecular monolayers or ultra-thin films using polarization-modulated infrared reflection-absorption spectroscopy (PM-IRRAS)
  • Second-order nonlinear optical techniques, such as hyper-Raman spectroscopy (HRS), ellipsometry, imaging, or second harmonic generation (SHG) reflectivity

Finally, the entire instrumental suite is supported by devices that allow in situ measurements under various sample environments (e.g., temperature control, pressure, atmosphere, electric field, levitation, irradiation, etc.).

 

Terms of use and Prices


 All details can be found in this document:

Télécharger la Chartre d'utilisation et la tarification en français (PDF)
Download The Terms of Use and Prices in English (PDF)


Raman spectroscopy (11 spectrometers)

  • 5 Raman spectrometers coupled to confocal microscopes are available with a wide range of excitation wavelengths from near infrared (fluorescent samples) to near UV (Resonance Raman Scattering RRS).
  • 1 Raman spectrometer is coupled to an Oxford-type cryogenic rod for measurements combining Raman and neutron scattering under controlled temperatures (2K-400K) with two excitation wavelengths at 532 nm and 785 nm. Location on the Very Large Research Infrastructures (TGIR) of Saclay (LLB) and Grenoble (ILL).
  • 2 Raman spectrometers coupled to confocal and AFM microscopes for measurements in transmission or reflection at a nanometric spatial resolution (Tip Enhanced Raman Spectroscopy, TERS).
  • 1 spectrometer for Second Harmonic Generation (SHG), hyper-Rayleigh and hyper-Raman spectroscopy.
  • 1 spectrometer coupled to a confocal microscope for hyper-Rayleigh and hyper-Raman imaging.
  • 1 spectrometer for Raman Optical Activity (ROA).

Infrared spectroscopy (10 spectrometers)

  • 4 FTIR spectrometers for conventional measurements in the far-infrared (FIR), mid-infrared (MIR) and near infrared (NIR) regions.
  • 2 FTIR spectrometers (allowing standard NIR measurements) coupled to microscopes for imaging.
  • 1 FTIR spectrometer (allowing standard NIR measurements) for polarization modulation measurements in transmission and reflection (PMIRRAS) .
  • 2 FTIR spectrometers (allowing standard NIR measurements) for Vibrational Circular Dichroism (VCD)
  • 1 portable FTIR spectrometer in the MIR region
  • Accessories available on all FTIR spectrometers: ATR, specular reflection, diffuse reflection, transmission cells for liquids and gaz.

Fluorescence, UV-visible absorption (3 spectrometers) and nanoscopy (2 microscopes)

  • 2 fluorescence spectrometers for excitations and emissions in the 250-2500 nm wavelengths range.
  • 1 UV-visible absorption spectrometer in the 190 - 900 nm spectral range.
  • AFM (2 microscopes)