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Terahertz (THz) spectroscopy and real-time monitoring are being combined in a ground-breaking method that will speed up the discovery of new materials, according to researchers from the University of Ottawa and the Max Planck Institute for the Science of Light.
Speeding Up Ultrafast Spectroscopy February 15, 2021• Physics 14, 23 A signal-processing algorithm called compressive sensing lets researchers characterize a sample with ultrafast spectroscopy using far fewer measurements than before. J.-M. Ménard/University of Ottawa; adapted by APS/Alan Stonebraker Figure 1: Schematic application of compressive sensing to THz time-domain spectroscopy. (Top left) A terahertz pulse is incident on a sample. (Top right) The pulse is shown after traveling through the sample with a trailing oscillatory tail indicating the presence of molecular resonan...