The diffraction pattern is therefore that due to a single aperture, merely brightened n times.
If the aperture and wave-length increase in the same proportion, the size and shape of the diffraction pattern undergo no change.
By this procedure the width of the central band in the diffraction pattern is halved, and so far an advantage is attained.
diffraction dif·frac·tion (dĭ-frāk'shən)
Change in the directions and intensities of a group of waves after passing by an obstacle or through an aperture.
|diffraction pattern |
The interference pattern that results when a wave or a series of waves undergoes diffraction, as when passed through a diffraction grating or the lattices of a crystal. The pattern provides information about the frequency of the wave and the structure of the material causing the diffraction. See also interferometer.
The bending and spreading of a wave, such as a light wave, around the edge of an object. See more at wave.