<unk>  is a measurement technique whereby spectra are collected based on measurements of the temporal coherence of a radiative source, using time-domain measurements of the electromagnetic radiation or other type of radiation.
It can be applied to a variety of types of<unk>  including optical<unk> , infrared<unk>  (IR), nuclear magnetic resonance, mass spectrometry and electron spin resonance<unk> . There are several methods for measuring the temporal coherence of the light, including the continuous wave Michelson or<unk><unk>  spectrometer and the pulsed<unk><unk>  spectrograph (which is more sensitive and has a much shorter sampling time than conventional<unk> c techniques, but is only applicable in a laboratory environment).
Fourier transform spectroscopy
Near infrared spectroscopy
Infrared spectroscopy
Sweat test
Spectroscopy
Laser-induced breakdown spectroscopy
Enzyme assay
Spectrophotometry