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
Index

Diffraction concepts

Fraunhofer diffraction
 
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