Standardising Electric-Field-Resolved Molecular Fingerprints

Infrared (IR) vibrational spectroscopy is a popular tool for a wide range of applications due to its ability to obtain label-free chemical information from virtually any sample [1], [2]. An important aspect for its widespread use is that IR spectra, when carefully measured and processed, are largely instrument-independent, and thus comparable. This has enabled the assembly of databases containing numerous spectra of chemicals, which are being used, e.g., to identify and quantify unknown substances in samples via chemometric approaches.