Description: The Mid Infrared Spectromicroscopy beamline provides a state-of-the-art Fourier Transform IR spectrometer and microscope to supply diffraction-limited spatial resolution to an ever-widening range of infrared spectroscopy experiments. Research and development will explore new experiments and re-examine existing techniques by applying the advantages of high brightness infrared synchrotron light.

Endstation(s):

• Bruker Optics IFS 66v/S FTIR with Hyperion confocal microscope/mapping stage

Techniques:

• Spectromicroscopy at diffraction-limited spatial resolution
• Photoacoustic Spectroscopy

Techniques under commissioning:

• Spectromicroscopy at grazing angle of incidence
• Spectromicroscopy with Attenuated Total internal Reflection (ATR)
• Polarization Modulation IR Spectromicroscopy

Optics: The first collecting mirror is in a specially designed dipole vacuum chamber. Point-to-point focusing optics transfer the IR light first through a thin diamond window that separates UHV from rough vacuum, and then is relayed as a collimated beam into the Bruker FTIR spectrometer and Hyperion microscope.

FTIR spectrometer and microscope in the beamline experimental hutch.

Left to Right: Kirk Michaelian, Tim May.

Mid IR Beamline rough vacuum section with collimating mirrors.

Kirk Michaelian working with the PAS cell.