A device that breaks up an electromagnetic wave into its different frequencies (wavelengths) by scattering them at different angles. For example, a series of thousands of scored lines in a glass plate ...
- optical device consisting of a surface with many parallel grooves in it; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum ...
Elément dispersif de certains spectrographes permettant une dispersion plus importante qu'avec un prisme. Le réseau est constitué d'une lame où sont gravés des traits parallèles équidistants en très ...
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