Institute for Electronic Structure Dynamics

Advanced infrared spectoscopy

The IR spectroscopy end-station is based on Bruker Vertex 70v vacuum FTIR spectrometer.   Using the the incoherent multi-bunch synchrotron operational mode the measurements can be performed in the spectral range 20-10000 cm^-1.  The coherent synchrotron radiation emitted in thespecial low-alpha operational mode of the synchrotron results in significant flux benefit at sub-terahertz frequencies. This mode allows perform the experiments in the spectral range of 5-50 cm^-1 .

Comparison of the far-IR ligth flux in coherent and incoherent synchrotron operation modes as well as the black-body radiation source.

The spectrometer is equipped with different detectors and beam-splitters, that allow to cover the ultra-broad spectral range of the light delivered by the synchrotron source. The developed sample environments enable experiments in a wide temperature range from 4 to 950 K, under controlled gas and humidity atmosphere conditions. Multiple measurement modalities available are suitable for the investigation of solid and liquid materials. In addition to steady-state measurements, the spectrometer also allows one to perform time-resolved experiments using the step scan and the rapid scan techniques. The end station is well suited for the precise characterization of novel materials, the study of phase transitions, chemical reactions, etc.