Dispersive Fourier-transform spectroscopy

{
  "id": "MLC-T-CHM-003310",
  "term": "Dispersive Fourier-transform spectroscopy",
  "field": "Chemistry",
  "definition": "A form of Fourier-transform spectroscopy in which the sample is placed in one arm of a Michelson or other two-beam interferometer, so that the interferogram is asymmetric and carries the phase shift as well as the absorption of the sample. Transforming the full interferogram gives both the absorption and the refractive index spectrum. It differs from conventional Fourier-transform spectroscopy, where the sample sits outside the interferometer and only transmitted intensity is measured.",
  "synonyms": [
    "asymmetric Fourier-transform spectroscopy"
  ],
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 656 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/dispersive-fourier-transform-spectroscopy/"
}