Process by which
electromagnetic radiation is reflected by a sample. For non-scattering samples the term means
Fresnel reflection; for scattering samples the term includes regular reflection and
volume reflection or
diffuse reflection.
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 671 (https://doi.org/10.1515/pac-2019-0203)