![]() In Fraunhofer diffraction, the diffraction pattern is. Smaller the length of opening higher will be the diffraction effect. In not too clear a fashion, Abbe described Fraunhofer diffraction as a decomposition of a spatial distribution of light into a series of plane waves. Fraunhofer diffraction means a diffraction phenomenon where both an electron source and an observation point are located infinitely far from an object. Fraunhofer diffraction is the type of diffraction that occurs in the limit of small Fresnel number. The diffractive effect seen in a set up depends on the length of the opening of the slit. In the case of Fraunhofer diffraction, parallel wave fronts of the light are studied in front of the diffraction object and behind it. A good example of this is the diffraction we see is the blue colour of light This phenomenon can also take place when light is bent around particles that are on the same order of magnitude as the wavelength of the light. Both Interference and Diffraction are closely related to each other. The extent of bending depends upon the diameter of the slit. Diffraction of light occurs due to the bending of light at the corners of the opening.ĭiffraction is the phenomenon by which light bends while passing through the edge of a material or through a slit opening. As monochromatic light is an EM wave which has a single wavelength due to this behavior it is easy to trace the diffraction pattern produced by it. ![]() Hint: In Fraunhofer diffraction, monochromatic light is used as a source of light which is placed behind the slit in the setup. Joseph von Fraunhofer (1787 - 1826) He re-discovered the dark lines in the spectra, that he labeled from A-Z (today known as the Franhofer lines). ![]()
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