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Proceedings Paper

Applications of volume holographic diffusers in projection displays
Author(s): Claire Gu; Jenn-Ren Lien; Foster F. Dai; John H. Hong
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Paper Abstract

We present a model based on the coupled mode theory and use this model to analyze the diffraction properties of volume holographic diffusers, such as the diffraction efficiency and wavelength sensitivity. Volume holograms of both transmission type and reflection type are analyzed. Besides typical behaviors of Bragg diffraction, we notice several interesting phenomena. For transmission gratings with small diffraction angles, our results predict that the diffraction efficiency exhibits a blue-shift for its maximum value and a dip at the recording wavelength. Also presented is the enhancement of wavelength tolerance for a thin holographic medium, which can serve as a wideband diffuser over the entire visible range. For a thick medium, the wavelength- multiplexed volume holograms recorded with three primary colors, red, green, and blue, are studied, which provide an effective and feasible means of diffusion for color displays.

Paper Details

Date Published: 8 May 1997
PDF: 10 pages
Proc. SPIE 3013, Projection Displays III, (8 May 1997); doi: 10.1117/12.273860
Show Author Affiliations
Claire Gu, The Pennsylvania State Univ. (United States)
Jenn-Ren Lien, The Pennsylvania State Univ. (United States)
Foster F. Dai, The Pennsylvania State Univ. (United States)
John H. Hong, Rockwell Science Ctr. (United States)

Published in SPIE Proceedings Vol. 3013:
Projection Displays III
Ming Hsien Wu, Editor(s)

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