Measurement method of
vibrational spectroscopy in which a constant-energy beam of electrons passes through or is reflected from a sample and the energy distribution in the transmitted or reflected beam is analysed to give a
spectrum of number of electrons against electron energy loss.
Note:
EELS is used for the study of electronic states and has an energy resolution of \(\pu{0.25 eV}\) or better (corresponding to an approximate wavenumber of \(\pu{2000 cm-1}\)).
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 744 (https://doi.org/10.1515/pac-2019-0203)