View source for Spectral resolution of an instrument

{{def
|def=Smallest difference between wavenumbers (or wavelengths or frequencies) at which different spectral properties may be distinguished, measured as the full width at half maximum.

Note 1: An equivalent definition is the minimum separation of two infinitely sharp lines of equal intensity of
radiation that allows the presence of two lines to be seen in the measured spectrum.

Note 2: Resolution depends strongly on the instrument line shape function of the spectrometer and on the
natural line width.
|rel=[[nominal spectral resolution]]
|ref={{PAC2019}}
|acronym=
}}