Find image files for some classic diffraction patterns here.

This dataset includes:

1. Circular aperture
2. Single slit
3. Double slit
4. 6 slit
5. Coarse grating

Note that the incident light source was a red laser () without use of a beam expander (i.e. a 1 mW was aimed at the diffracting object and the resulting pattern was observed approximately 0.5 m away on a blank screen).

It should be possible to fit this data to the numerical solutions for these examples (e.g. ~sinc(x) for a single slit). Remember to consider the impact of the resolution of the camera and any background light when interpreting.

I would suggest using ImageJ to extract intensity plots from the raw images.

Solutions available on request.