7.1.3. Multi- holes and slits.

In this example we demonstrate the use of a number of holes or slits in a row. In this way it is possible to make a grating. There are two wavelengths in the beam which demonstrates the use of a grating as a spectrometer. The intensities of the two fields can be simply added after separate propagations.

(Source code, png, hires.png, pdf)

Below we demonstrate interference from a row of holes.

(Source code, png, hires.png, pdf)