The light from all the slits is reinforced in the same way to produce 'diffracted light.'įig. 1, light is reinforced when the optical path difference is a multiple of the wavelength. In short, for parallel beams that enter neighboring slits as shown in Fig. Picking out diffracted (reinforced) light makes it possible to select the required light component. When white light enters the grating, the light components are diffracted at angles that are determined by the respective wavelengths (diffraction).
The simplest type of grating is one with a large number of evenly spaced parallel slits. Our Technology for Manufacturing GratingsĪ diffraction grating is an optical element that divides (disperses) light composed of lots of different wavelengths(e.g., white light) into light components by wavelength.
