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= Laser direct infrared spectroscopy =

Laser direct infrared spectroscopy (LDIR)[1] is a technique which is used to obtain an infrared spectrum of absorption or emission of a solid, liquid or gas. An LDIR spectrometer pairs an infrared tunable laser as the source with a single point detector. This provides a significant speed advantage over dispersive or Fourier transform infrared spectrometers by allowing the user to only measure the wavelengths of interest.

The term Fourier transform infrared spectroscopy originates from the fact that a Fourier transform (a mathematical process) is required to convert the raw data into the actual spectrum. Category:Infrared spectroscopy