PHYS 201 | Slit Diffraction 3 - Fraunhofer Diffraction

Now we set up the mathematical calculation of diffraction with Huygens-Fresnel wavelets, including the confusing concept of "field amplitude". Diffraction will be calculated in the "far field". This means we make several approximations as we set up the diffraction integral. Diffraction in the far field is called Fraunhofer Diffraction.