Fourier transform spectrometer
A scanning @I03094@, containing no principal dispersive element, which first splits a beam into two or more components, then recombines these with a phase difference. The spectrum is obtained by a Fourier @T06446@ of the output of the @I03094@.
See also:
multiplex spectrometer
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2243 [Terms] [Paper]