spectral bandwidth

unit: $\pu{Hz}$
synonym: bandwidth
https://doi.org/10.1351/goldbook.08286
Upper frequency minus lower frequency in a continuous band of frequencies.
Note:
SI unit: hertz, \(\pu{Hz}\).
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 673 [Terms] [Paper]