As part of a consortium including teams from CNRS, C2N at Université Paris-Saclay, IES at University of Montpellier, Technische Universität Wien, Politecnico di Milano, ETH Zürich, and Sensirion, our team will aim to redefine the boundaries of modern spectroscopy.
High-resolution optical spectroscopy in the mid-infrared (mid-IR) range (3-12 µm) is critical for detecting trace amounts of greenhouse and toxic gases, meeting the EU’s “Zero Pollution” goals. However, current devices are costly, bulky, and complex, limiting their widespread use, especially in IoT applications. The UNISON project aims to create a compact, scalable mid-IR spectroscopy platform by developing a dual-comb spectrometer based on silicon-germanium (SiGe) photonic circuits and electrically pumped cascade lasers. This platform will deliver broad detection bandwidth, fine spectral resolution, and miniaturized design for high-sensitivity gas detection in various applications.