An echelle grating (from French échelle, meaning "ladder") is a type of characterised by a relatively low groove density, but a groove shape which is optimized for use at high incidence angles and therefore in high. Higher diffraction orders allow for increased dispersion (spacing) of spectral features at the detector, enabling increased differentiation of these features. Echelle gratings ar.
A spectrometer is a scientific instrument used to separate and measure components of a physical phenomenon. Spectrometer is a broad term often used to describe instruments that measure a continuous variable of a phenomenon where the spectral components are somehow mixed. In a spectrometer can separate white and measure individual narrow bands of color, called a spectrum. A.
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