Siegel der Universität

Universität zu Köln
Mathematisch-Naturwissenschaftliche Fakultät
Fachgruppe Physik

I. Physikalisches Institut

Cologne Center for THz Spectroscopy

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The Cologne Center for Terahertz Spectroscopy (CCTS) is offering its state-of-the-art instrumentation for gas-phase spectroscopy to outside users.

The CCTS provides an exceptionally large frequency range from millimeter wavelengths to the mid infrared (0.03 – 100 THz).

Measurements can be carried out at highest spectral resolution and sensitivity. Outside users will be assisted by experienced team scientists guaranteeing highest-quality output.

Results of these experiments will be made publically available in the Cologne Database for Molecular Spectroscopy (CDMS) , the largest repository of Terahertz spectroscopic data worldwide. 

You are cordially invited to contact us to make use of these unique opportunities! 


Prof. Dr. Stephan Schlemmer
I. Physikalisches Institut
Universität zu Köln
Zülpicher Str. 77
50937 Köln
Phone: +49-221-470-5736
Fax: +49-221-470-5162

The Cologne Center for Terahertz Spectroscopy is funded by the Deutsche Forschungsgemeinschaft (DFG) as a Core Facility.

If you have any questions regarding the CCTS, feel free to contact us via: ccts [at] ph1 [dot] uni-koeln [dot] de

Frequency coverage provided by the CCTS:

The Cologne ion traps:


Millimeter-wave spectrometer:


Chirped-pulse microwave spectrometer: