In optics, a diffraction grating is an optical grating with a periodic structure that diffracts light, or another type of electromagnetic radiation, into several beams traveling in different directions (i.e., different diffraction angles).

Diffraction gratings are commonly used for spectroscopic dispersion and analysis of light. What makes them particularly useful is the fact that they form a sharper pattern than double slits do. That is, their bright fringes are narrower and brighter while their dark regions are darker.

Learn about how diffraction gratings separate incident light into separate beam paths, different types of gratings, and how to choose the best grating for you.

2024年11月6日 · A diffraction grating is used to produce narrow bright fringes when laser light is diffracted through it. Just like for single and double-slit diffraction the regions where constructive interference occurs are also the regions of maximum intensity. Their location can be calculated using the diffraction grating equation

A diffraction grating defines an optical component with a periodic structure that splits the light into various beams that travel in different directions. It is an alternative way to observe spectra other than a prism.

2024年11月25日 · diffraction grating, component of optical devices consisting of a surface ruled with close, equidistant, and parallel lines for the purpose of resolving light into spectra.

2020年10月14日 · Diffraction gratings are optical devices that are used in instruments, such as spectrometers, to separate polychromatic light into the underlying constituent wavelengths of which it is comprised.