TeraFERMI offline

The TeraFERMI laboratory is also equipped with table-top sources based on photoconductive antennas for THz-Time Domain Spectroscopy (THz-TDS) providing a spectral range between 0.1-5 THz. The frequency span overlaps with the TeraFERMI beamline's THz spectrum and completes the facility possibilities with linear spectroscopy as a characterization tool. 

THz-TDS allows  probing the transmission properties of materials both in amplitude and phase, thereby allowing a complete direct characterization of the complex dielectric constant without the need of using Kramers-Kronig Transformations as in FTIR.

THz spectroscopy is non-ionizing and therefore safe to use on biological molecules and tissues, and provides a significant chemical specificity allowing to distinguish polymorphic forms of many molecules of pharmaceutical interest, narcotics, explosives, etc. THz radiation is also highly penetrating thereby allowing to address buried layers trough visually opaque materials.

Batop THz-TDS spectrometer

The Batop THz-TDS spectrometer is based on a Menlo C-Fiber 780 laser system operating at 80 MHz coupled with photoconductiva antennas PCA-40-05-10-800-h and bPCA-100-05-10-800-h from Batop optoelectronics.


The system is currently being implemented with additional visible and UV sources for the development of optical/UV pump - THz probe spectroscopies

Menlo TeraSmart Imaging Sysytem

The compact terahertz spectrometer TeraSmart is a THz-TDS spectrometer combining the ELMO fiber-based femtosecond laser source with broadband THz antennas. While being available also as a stand-alone instrument for THz spectroscopy, this system is also integrated with the Tera Image extension unit, and with the Terahertz reflection head. These units allow for diffraction limited THz hyperspectral imaging of systems with a travel range up to 150 mm.

THz NeaSCOPE

THz-neaSCOPE enables THz imaging and spectroscopy at the nanoscale. A fully integrated, turn-key configuration based on a compact THz-TDS system allows immediate investigations of conductivity phenomena in semiconducting nanostructures, 2D nanomaterials and novel complex material systems, as well as in biology.