Harnessing the quantum interference of pair generation processes, infrared spectroscopy, based on nonlinear interferometers with visible-infrared photon-pair sources, enables extraction optical properties a sample through visible photon detection without need for an source or detector. We develop theoretical framework Fourier-transform (QFTIR) spectroscopy. The proposed Fourier analysis method,...

Fourier-transform infrared (FTIR) magneto-spectroscopy is a powerful spectroscopic technique used to investigate many important effects in materials, e.g., electron spin resonance, cyclotron and transitions between Landau levels. Despite their enormous potential material science, magneto-spectrometers are still relatively rare custom-made since such systems generally require complex infrastruct...

Abstract The study of soil organic matter (SOM) can benefit from the use Fourier‐transform infrared spectroscopy, an analytical method that complements traditional fractionation and extraction methods. This review provides guidance on diffuse reflectance Fourier transform (DRIFT) in mid‐infrared region (MIR: 4000–400 cm −1 ). Two distinct applications DRIFT spectroscopy are reviewed: (1) charac...