Paper
21 November 1977 Two-Dimensional Laser Beam Deflections Using Computer-Generated Holograms
Wai-Hon Lee
Author Affiliations +
Abstract
Laser beam deflection can be obtained by using holographic gratings. For example, a constant-frequency grating rotating normal to the laser beam can scan the laser beam along an arc of a circle. Or, by moving an off-axis zone plate across the laser beam, the linear variation in the spatial frequencies of the zone plate will produce a raster scan line. Even more complicated scanned patterns can be obtained by making the proper computer-generated holograms. In this paper the principle of holographic grating scanner and the consider-ations in making computer-generated holograms to produce beam deflections in two directions will be discussed. Some experimental results will be shown.
© (1977) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wai-Hon Lee "Two-Dimensional Laser Beam Deflections Using Computer-Generated Holograms", Proc. SPIE 0126, Clever Optics: Innovative Applications of Optics, (21 November 1977); https://doi.org/10.1117/12.955888
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KEYWORDS
Holograms

Computer generated holography

Scanners

Spatial frequencies

Holography

Raster graphics

3D scanning

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