Measurement method of spectroscopy in which the absorption of
electromagnetic radiation by a sample is detected as a result of the heat generated by the absorption.
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 759 (https://doi.org/10.1515/pac-2019-0203)