Influence of surface structures
Terahertz time-domain spectroscopy (TDS) is an established technology for identification and characterization of materials. For mobile applications, reflective TDS…
PICs for THz
Photonic integrated circuits (PICs) are beneficial as beating sources in CW-THz systems because they allow precise and stable generation of THz signals through the photo mixing of two…
Wafer characterisation
One challenge in Terahertz spectroscopy is the independent determination of refractive index and geometrical thickness of a given sample. This can be solved for semiconductor…
Gas cell
Gas molecules have intra-molecular movements such as vibrational, rotational and translational motions, which absorbs energy in the THz frequency range. Another reason to use THz radiation…
