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Proceedings Paper

Making uniform diffusion boundaries for cascaded holographic diffusers for a large-area application
Author(s): Byungchoon Yang; Kyungmin Byun; Byoungho Lee
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Paper Abstract

When fabricating a large area holographic diffuser by cascading hologram of diffusion patterns with specified are, it was found that a fluctuation of diffraction intensity occurred at the boundaries of the two adjacent exposed areas. It was affirmed experimentally that this problem could be alleviated by controlling the intensity distribution of reference laser beam around the boundary of each exposure area. Using these method, the fluctuation was reduced considerably. For better compensation of the non- uniformity a theoretical analysis for the diffusion process of photopolymer is discussed and compared with the experimental result.

Paper Details

Date Published: 3 June 2002
PDF: 8 pages
Proc. SPIE 4659, Practical Holography XVI and Holographic Materials VIII, (3 June 2002); doi: 10.1117/12.469272
Show Author Affiliations
Byungchoon Yang, Seoul National Univ. (South Korea)
Kyungmin Byun, Seoul National Univ. (South Korea)
Byoungho Lee, Seoul National Univ. (South Korea)

Published in SPIE Proceedings Vol. 4659:
Practical Holography XVI and Holographic Materials VIII
Sylvia H. Stevenson; Stephen A. Benton; T. John Trout; Sylvia H. Stevenson; T. John Trout, Editor(s)

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