4f Diffraction System

Photograph of 4f diffracton system
Apparatus:
parallel rails with beam splitters and lenses, HeNe laser, image filters

Description:
Designed for the EP3 course, this demonstration produces a transform-filter-inverse transform of a coherently illuminated slide. Beamspliiters and lenses allow magnified images of the planes of interest to be viewed simultaneously, including both the filtered and raw transform planes.
This demonstration requires considerable alignment, so please allow time for the technicians.