“…The enticing prospect of highly sensitive and selective molecular detection has spurred the development of mid-infrared (MIR) spectrometers [1,2], having strong implications for example in the fields of security [3], health [4], food production [5], and others [6][7][8]. While Fourier transform infrared spectrometers (FTIRs) based on thermal sources have, for several decades, been the working horse for MIR spectroscopy, optical frequency combs (OFCs) [9] have emerged in the last two decades as the new tool for spectroscopy [1].…”