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The SMIS spectromicroscopy beamline aims to deliver high brilliance infrared radiation in the ~1 - 200 µm spectral range, with optimization in the 2.5 - 50 µm spectral window. The synchrotron beam is split to operate two systems working in parallel. The beamline is dedicated to microscopic analysis of a variety of samples, spanning from polymer films and multilayers, minerals and other geological materials, biological and biomedical samples, to archaeology. 

An ensemble of experimental cells are provided and adapted to accommodate various needs allowing experiments at various temperature and pressure conditions, under mechanical stress, etc. Besides working with commercially available equipment adapted to the synchrotron source, the SMIS beamline is a world leading facility in custom built IR instrumentation.

Team

ALBUGAMI
BORONDICS
BORONDICS Ferenc
Responsable Ligne De Lumière
CAPITANI
CAPITANI Francesco
CELESTE
CELESTE Anna
DUMAS
DUMAS Paul
Emerite CNRS
LEFRANCOIS
LEFRANCOIS Stephane
Assistant Ingénieur de Ligne De Lumière
MAUPIN
PARTOUCHE
PARTOUCHE David
Doctorant
SANDT
SANDT Christophe
Scientifique de Ligne De Lumière
SOLHEIM

Technical data

Energy range

1.25 μm – 50 μm / 8000 cm-1 – 200 cm-1 / 1 – 0.025 eV

Energy Resolution

0.1 cm-1 / 0.012 meV

Source

Edge and Bending Magnet Radiation - 78 mrad Horizontal × 20 mrad Vertical extraction

Flux @ first optical element

1.86×1014 Photons/s/0.1%bw @ 10 µm for 500 mA stored current

Optics

Combination of flat and toroid mirrors. The synchrotron beam is divided to feed two IR interferometers at the same time

List of techniques

Single point microscopy
Time resolved, high spatial resolution microscopy (rapid scan and Step/Scan)
Single point raster mapping
ATR microscopy in inverted geometry
Very high sensitivity ATR spectroscopy (~70 ATR bounces)
2D IR FPA imaging
nanoIR techniques: sSNOM and phototermal AFM-IR (under commissioning)
mIRage photothermal IR microscope with ~500 nm resolution (operating with QCL source)
Raman microscopy
Müller polarimetry (SR adaptation in progress, available with thermal source)

ATR and grazing incidence objectives
Diamond anvil cells: low (0.5-5 GPa) and moderately high (<40GPa) pressure
Cooling and heating sample stages (Linkam)
LHe flow cryostat (Oxford Microstat)

Beam size at sample

~10×10 μm2

Flux on sample

~4.8×1013 Photons/s/0.1%bw  at the entrance of the interferometer

Detectors

small area MCT/A (Mercury Cadmium Telluride), MCT/B detector with extended spectral range, LHe cooled CuGe, InSb, Si photodiode

Polarization

Both linearly (bending magnet emission) and radially polarized (edge radiation)

Scientific opportunities

Soft matter

Microscopic Analysis of inclusions in polymers; polymer interfaces; chemical imaging of components and crystallinity;deformation under stretching;Chemical composition changes with temperature

Geology

Identification of inclusions in minerals; Chemical imaging of inclusions constituents; Interface studies, grain boundaries between minerals; archaeological minerals; Study of water recirculation in deep earth mantle; Deformation and chemical composition changes of minerals under high pressure

 Biology, Biomedical 

Individual cells study, Imaging biochemical compositon inside individual cells: Apoptosis et Necrosis; Tumoral cells; Study of human tissues: hair, skin, bone, brain... ; bacterial identification.

Archeology

Analysis of ancient mummies, ancient cosmetics; analysis of traces of paint composition.

Thin Films

Analysis and chemical imaging of thin films, protection layers

Applied Research

Analysis and expertise of various applied problems in a short time scale.

Desription of experimental capabilities at the SMIS beamline both with synchrotron beam and off line instruments.

Point-to-point IR spectromicroscopy, raster mapping

Continuum XL microscope / Thermo Nicolet 6700 bench
Location / branch SMIS 1
Spectral range MCT/A detector, 650 - 6000 cm-1
Spectral resolution 0.125 - 32 cm-1 
Operation modes Confocal dual aperture, single aperture, reflection and transmission geometry
Accessories Linkam heating stage, high quality purge box, microfluidic devices, Thermo ATR accessory
Objectives 15x (0.58 NA), 32x (0.65 NA), 15x ATR ZnSe

 

Continuum microscope / Thermo Nicolet 8700 bench
Location / branch SMIS 2
Spectral range

MCT/A detector, 650 - 6000 cm-1

InGaAs detector 2000 - 14000 cm-1

Spectral resolution 0.125 - 32 cm-1 
Operation modes Confocal dual aperture, single aperture, reflection and transmission geometry
Accessories Linkam heating stage, microfluidic devices, Thermo ATR accessory
Objectives 15x (0.58 NA), 32x (0.65 NA), 15x ATR ZnSe

The Thermo Nicolet 8700 bench is capable of time resolved studies in Rapid Scan and Step/Scan modes.

Nicplan microscope / Thermo Fischer iS50 bench
Location / branch SMIS 2
Spectral range

MCT/A detector, 650 - 6000 cm-1

Si Bolometer, 100 - 900 cm-1

Spectral resolution 0.125 - 32 cm-1 
Operation modes Confocal dual aperture, single aperture, reflection and transmission geometry
Accessories Linkam heating stage, microfluidic devices, Diamond Anvil Cells
Objectives 15x (0.58 NA), 32x (0.65 NA), Bruker Grazing Incidence Objective
Horizontal microscope / Thermo Fischer iS50 bench
Location / branch SMIS 2
Spectral range

MCT/A detector, 650 - 6000 cm-1

Si Bolometer, 100 - 900 cm-1

Spectral resolution 0.125 - 32 cm-1 
Operation modes Reflection and transmission geometry
Accessories Diamond Anvil Cells (DAC), DAC LHe flow cryostat (base T~15K), DAC heating accessory (T up to 700 Cº), custom user experiments
Objectives 15x (0.5 NA)
Anasys NanoIR 2-s microscope
Location / branch SMIS 3
Spectral range

MCT/A detector, 650 - 6000 cm-1

Spectral resolution 2 - 32 cm-1 
Operation modes AFM-IR (photothermal) and scattering SNOM spectromicroscopy
Accessories 400 mW CO2 laser
mIRage photothermal IR and simultaneous Raman microscope
Location / branch SMIS extension
Spectral range

800 - 1800 cm-1

Spectral resolution 0.5 cm-1 
Operation modes Reflection (Si and APD detectors for high and low power operation), Transmission (Si detector)
Accessories Raman spectrometer (in progress)
Manufacturer Photothermal Spectroscopy Corp.

SMIS, in collaboration with multiple research groups is participating in the development of Quasar, an open source project, a collection of data analysis toolboxes extending the Orange suite. We empower researchers from a variety of fields to gain better insight into their data through interactive data visualization, powerful machine learning methods and combining different datasets in easy to understand visual workflows. 

Potential users can download the software from the Quasar website and interested developers can contribute to the repositories of the Quasars GitHub organization.