Fraunhofer Diffraction Geometry

The diffraction pattern at the right is taken with a helium-neon laser and a narrow single slit.

Note: To obtain the expression for the displacement y above, the small angle approximation was used.

Calculation for single slit
Intensity for single slit
Double slit interference
Comparison to double slit
Examine approximation

Diffraction concepts

Fraunhofer diffraction
HyperPhysics***** Light and Vision R Nave
Go Back