Astrophysics (Index)About


(grating prism)
(combination of a grating and a prism)

A grism (or grating prism) is a combination of a grating and a prism, arranged so electromagnetic radiation at a certain wavelength passes through, allowing a single instrument to act both as an imager and a spectroscope. Example instruments incorporating a grism:

Further reading:

Referenced by pages:
Faint Infrared Grism Survey (FIGS)