Diffraction grating formula
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What is grating element
Diffraction grating pattern.
Diffraction grating
Optical component which splits light into several beams
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).
The emerging coloration is a form of structural coloration.[1][2] The directions or diffraction angles of these beams depend on the wave (light) incident angle to the diffraction grating, the spacing or periodic distance between adjacent diffracting elements (e.g., parallel slits for a transmission grating) on the grating, and the wavelength of the incident light.
The grating acts as a dispersive element. Because of this, diffraction gratings are commonly used in monochromators and spectrometers, but other applications are also possible such as optical encoders for high-precision motion control[3] and wavefront measurement.[4][5]
For typical applications, a reflective grating has ridges or rulings on its su
- how does a diffraction grating work
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