Design and fabrication of multilevel computer-generated holograms: semicontinuous phase patterns

Guylain Lemelin; Roger A. Lessard

doi:10.1117/12.165556

12 January 1994 Design and fabrication of multilevel computer-generated holograms: semicontinuous phase patterns

Guylain Lemelin, Roger A. Lessard

Proceedings Volume 2043, Holographic Imaging and Materials; (1994) https://doi.org/10.1117/12.165556
Event: Optics Quebec, 1993, Quebec City, Canada

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.

Citation Download Citation

Guylain Lemelin and Roger A. Lessard "Design and fabrication of multilevel computer-generated holograms: semicontinuous phase patterns", Proc. SPIE 2043, Holographic Imaging and Materials, (12 January 1994); https://doi.org/10.1117/12.165556

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