filter spectrometer

https://doi.org/10.1351/goldbook.F02387
A @[email protected] which has one or more spectral filters for isolating one or more spectral bands.
Source:
PAC, 1995, 67, 1725. (Nomenclature, symbols, units and their usage in spectrochemical analysis-IX. Instrumentation for the spectral dispersion and isolation of optical radiation (IUPAC Recommendations 1995)) on page 1729 [Terms] [Paper]