Beamline Phone Number:
+44 (0) 1235 778684
Principal Beamline Scientist:
Dr Gianfelice Cinque
Tel: +44 (0) 1235 778410
E-mail: [email protected]
Email: [email protected]
Tel: +44 (0)1235 56 7675
Infrared (IR) Microscopy (in scanning mode) and Imaging (or full field microscopy) are quantitative and non-destructive methods ideal for soft condensed matter studies, both organic and inorganic.
Fourier Transform IR interferometry (FTIR) is most effective multiplexing technique for reliable absorption spectroscopy of molecules.
Synchrotron Radiation (SR) high brightness boosts the microprobe to the highest IR spatial resolution, and enhances the molecular sensitivity typical of FTIR vibrational spectroscopy.
The unique broadband of SR photon emission - continuosly from near- to far-IR - guarantees seamless experiments in the instruments and sample compartments available at B22. This includes TeraHertz (THz) spectroscopy beyond the so-called "THz gap".
At MIRIAM, FTIR maps with highest highest spectral quality and diffraction limited resolution (slits as fine as 3x3 µm2) are obtained in scanning mode. Focal Plane Array (FPA) detectors on the B22 microscopes provide fast hyperspectral imaging on larger field of view (tiling up to millimetric samples). Our novelty in the field is a world-unique IR Adaptive Optics for SR beam shaping and optimal IR imaging, currently under commissioning with the help of machine learning.
Latest upgrade to the MIRIAM beamline since 2022 is a novel multimode and user-friendly nanoIR endstation. Uniquely among all SR facility worldwide, both photothermal (AFM IR) and scattering (s-SNOM) are available at Diamond B22 for different class of experiments requiring, respectively: bulk measurement (> 1um) and true absorption nanospectra (at 100s nm resolution) or highest spatial resolution (10s nm) and surface sensitivity (100s nm).
The MIRIAM beamline B22 at Diamond Light Source is now opening a dedicated user call for Synchrotron IR beamtime using either scattering-Scanning Near-field Optical Microscopy (s-SNOM) or photothermal Atomic Force Microscopy - IR (AFM-IR).
The deadline for the this 2nd collaborative user proposals call will be the 27th January 2025.
Specifications
|
Parameter |
Nano-FTIR |
AFM-IR |
|
Spatial Resolution: |
10s of nm |
100s of nm |
|
Sample thickness: |
< 300 nm if on reflective substrate |
ideally > 100 nm up to few um |
|
Spectral range: |
650-4000 cm-1 |
600-5000 cm-1 |
|
Illumination: |
Top illumination |
Top or bottom (transparent substrate) |
|
Spectral resolution: |
> 3 cm-1 (typical 8 to 16 cm-1) |
|
|
Spectral acquisition time: |
1-10 min / point |
|
|
Acquisition modes: |
Whitelight images, Topography, 1D linescans, 2D maps |
|
For these experiments it is essential that users have well-characterised samples. Preferentially, experimental aspects in proposals should be discussed with beamline staff.
All proposals will be assessed based on scientific merit by an independent review panel, with a strong emphasis on technical feasibility including sample-method suitability.
Interested users should submit their application through the User Administration System (UAS) and choose the “B22 commissioning” access route as specific call for beamtime on the new MIRIAM/B22 nano-IR end station.
For more information about experiments, please contact Hendrik Vondracek or Mark Frogley.
Users publishing work containing synchrotron data from Diamond Light Source should ensure they acknowledge Diamond and any of its personnel in any published material that results from use of the Diamond facilities. The following statement should always be included in any publications:
Diamond Light Source is the UK's national synchrotron science facility, located at the Harwell Science and Innovation Campus in Oxfordshire.
Copyright © Diamond Light Source
Diamond Light Source Ltd
Diamond House
Harwell Science & Innovation Campus
Didcot
Oxfordshire
OX11 0DE
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Soft Condensed Matter
Macromolecular
Soft Condensed 
Imaging and
Biological
Magnetic
Structures and
Crystallography 
Spectroscopy