Diffraction Grating

The big distinction, with a diffraction grating, is how rapidly the intensity falls away from these maxima. Because there are so many slits to act as sources, any angle other than those for maxima will be dark or nearly dark.


Young's Double Slit

Diffraction Effects

Return to Ch 20, Wave Optics: Interference and Diffraction
(c) Doug Davis, 2002; all rights reserved