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Diffraction and double slit interference

  1. Oct 13, 2007 #1
    hey during proof of expression of double slit interference at a point ,we take into account the interference due to 2 light rays emerging from 2 different slits. here why don't we account for the the interference also due to to light rays emerging from the same slit as in the single slit interference???
  2. jcsd
  3. Oct 13, 2007 #2

    Doc Al

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    Staff: Mentor

    It's just easier to discuss each effect separately. The real deal combines the interference of the double slit with the diffraction of the single slit: Double Slit Diffraction
  4. Oct 14, 2007 #3

    Claude Bile

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    Science Advisor

    Usually the slits are assumed to be infinitely thin, or possess some other comparable idealisation, to remove the effect of single-slit diffraction - for the purposes of clarity as Doc Al said.

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