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Proceedings Paper

Design and fabrication of multilevel computer-generated holograms: semicontinuous phase patterns
Author(s): Guylain Lemelin; Roger A. Lessard
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Paper Abstract

Our Computer Generated Holograms are made of different thin stripes, each of them modifying the phase of the input scanning beam. There are two main set-ups. If the size of the stripe is equal to or larger than the scanning beam, we can address the different points or modify the phase pattern of the scanning beam in a discontinuous way. But if the size of the stripe is much smaller than the scanning beam, we will almost get a continuous variation of the phase pattern as the beam changes its position. With this, we can modify the input wavefront either into a smooth curve or corrected beam.

Paper Details

Date Published: 12 January 1994
PDF: 8 pages
Proc. SPIE 2043, Holographic Imaging and Materials, (12 January 1994); doi: 10.1117/12.165556
Show Author Affiliations
Guylain Lemelin, COPL/Univ. Laval (Canada)
Roger A. Lessard, COPL/Univ. Laval (Canada)

Published in SPIE Proceedings Vol. 2043:
Holographic Imaging and Materials
Tung H. Jeong, Editor(s)

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