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Practical Holography, 4th Edition by Stanislovas Zacharovas, Graham Saxby

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Chapter 14

Homemade Optical Elements

All this time the Guard was looking at her, first through a telescope, then through a microscope, and then through an opera-glass.

Lewis Carroll

Through the Looking-Glass

If you want to create holograms for display rather than as part of a scientific research project, you don’t have to spend large sums on components of high optical quality. As the initial diameter of a laser beam is so small, it uses only a very small part of any optical device such as a mirror or beamsplitter, and cheap components will produce perfectly satisfactory holograms. Some of the optical devices you need may well be lying in a cupboard full of photographic (or nonphotographic) junk. Everything described in this chapter, you can ...

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