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…
Chirped Mirrors
In THz homodyne systems, optical delay is often realized through mechanical delay lines, which are expensive and complex, thus limiting industrial applications. The use of…
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…
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…
Y-DFB laser:
This laser features a Y-shaped resonator with a shared gain segment (combiner segment) and two separate gain segments for selective feedback at 1536 nm and 1544 nm with top-etched slots…
Monolithic dual mode lasers
Monolithic dual-mode lasers are beneficial for THz systems due to their compact, integrated design, which enables stable and coherent THz signal generation through…
Y-DBR laser:
The Y-DBR laser is a micro-integrated dual-wavelength master oscillator power amplifier (MOPA) designed and fabricated by our cooperation partner Ferdinand-Braun Institute. The laser…
