Spatial light modulator device with diffusive element

Details Spatial light modulator device with diffusive element Spatial light modulator device with diffusive element

2006-08-08

2006-08-08

Mack, Ricky (Department: 2873)

Optical: systems and elements

Optical modulator

C359S227000, C359S030000, C359S028000

Reexamination Certificate

active

07088488

ABSTRACT:
The invention is directed to a spatial light modulator device that can improve holographic data recording systems, and various methods and systems incorporating the device. The spatial light modulator device includes a diffusive element to diffuse or scatter a data encoded object beam. For example, the diffusive element may comprise a two-layer diffusive laminate formed, a polymer dispersed liquid crystal material, or another diffusive material. The diffusive element can be formed over the output window, or may comprise the output window of the spatial light modulator device. In any case, the diffusive element can slightly scatter the data encoded object beam, which can significantly reduce undesirable zero-order burning effects in a holographic medium positioned in proximity to a Fourier transform plane.

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Chapter 6: Technical Evaluation of Work, http://www.wtec.org/loyola/dsply—jp/c6—s3.htm.
“Holographic Data Storage Using SLM With PDLC Optical Elements,” U.S. Appl. No. 10/889,728, filed Jul. 13, 2004.

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