Monochromator

A monochromator is a device used in scientific instruments to select a specific wavelength or color of light from a broader spectrum. It works by using components like prisms or diffraction gratings to disperse incoming light into its different wavelengths, then isolates a narrow band of that light for analysis or experimentation. This precise selection allows researchers to study materials or reactions with a specific color of light, enabling detailed examination of optical properties or energy interactions. Monochromators are essential in fields such as spectroscopy, where understanding light-matter interactions at particular wavelengths is crucial.