Integral field units

Observation Spectroscopy
Integral field spectrograph

Spectrograph equipped with an integral field unit

Integral field spectrographs (IFS) combine spectrographic and imaging capabilities in the optical or infrared wavelength domains (0.32 μm – 24 μm) to get from a single exposure spatially resolved spectra in a bi-dimensional region. Developed at first for the study of astronomical objects, this technique is now also used in many other fields, such bio-medical science and Earth remote sensing, usually under the name of snapshot hyperspectral imaging.

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