Record of the signal from the detector of a two-beam interferometer as the
optical path difference between the two beams is varied.
Note:
The interference record contains a part that is constant and a part that varies with the path difference.
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 751 (https://doi.org/10.1515/pac-2019-0203)