single beam spectrum

synonym: intensity spectrum
https://doi.org/10.1351/goldbook.08283
Output of a single beam spectrometer as a function of wavenumber or wavelength.
Note:
A single-beam spectrum is often termed an 'intensity spectrum' (the measured radiant power is the intensity times the area of the detector) and does not have a flat baseline.
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 672 [Terms] [Paper]