The THz-TDS is a versatile technique and can be used to probe gas phase molecules. We are pushing the technique to its limit to try and detect trace gases at the sub-ppm levels. The experiments served as a reference for a quantitative approach that permits to extract the concentration of a probed gas. The single-parameter quantification model can be considered as the basis for a wider multispecies detection scheme.
Cite
@article{arxiv.2410.07710,
title = {Can the THz-TDS detect trace gases?},
author = {Noureddin Osseiran and Jeyan Bichon and Sophie Eliet and Romain Peretti},
journal= {arXiv preprint arXiv:2410.07710},
year = {2024}
}