December 2022
Intermediate to advanced
448 pages
18h 28m
English
Content preview from Introduction to Holography, 2nd Edition
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11 Holographic Optical Elements
11.1 Introduction
The refraction, reflection, and diffraction processes by which one wavefront is converted to a different one are enabled by prisms, lenses, mirrors, and diffraction gratings. A hologram is essentially a recording of a wavefront and, upon reconstruction, converts a reference wave into the object wave, with up to 100% efficiency in volume holograms. Thus, any converter of the shape and/or propagation direction of a light wavefront such as a lens, prism, or mirror could, in principle, be replaced by a hologram or holographic optical element (HOE). Volume HOEs are transparent to light incident at angles outside the Bragg angular passband, a very useful property in ...
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