Microwave and Terahertz Spectroscopy Group

The Microwave and Terahertz Spectroscopy Group is engaged in theoretical analyses and experimental studies of high-resolution molecular spectroscopy in the microwave and far-infrared regions, where measured data are interpreted in terms of effective quantum-mechanical Hamiltonians.

The group has built microwave spectrometers operating in the centimeter, millimeter, and submillimetre ranges, which are uniquely capable in the Czech Republic of resolving the so-called hyperfine structure of molecules and providing measurements with the accuracy of a Cs standard. These instruments are the only ones of their kind in the country. In addition, the group is equipped with terahertz spectrometers covering a spectral range from 0.1 to 7.5 THz, enabling unique studies of intermolecular interactions.

The research focuses on both small, previously uncharacterized molecules and molecular radicals (e.g., SPN, FCO₂, FSO₃) and on large, biologically relevant molecules that can be studied in the gas phase.