Paper
18 May 1999 Holographic data storage in phenanthrenequinone-doped PMMA
Gregory J. Steckman, Iouri V. Solomatine, Gan Zhou, Demetri Psaltis
Author Affiliations +
Abstract
Phenanthrenequinone (PQ)-doped poly(methyl methacrylate) (PMMA) is a photopolymer holographic recording material that can be made in large thicknesses and does not exhibit any shrinkage. Hologram are made permanent by a post-recording diffusion amplification process. PQ-doped PMMA thus exhibits may properties which make it an ideal candidate as a high- density read-only holographic data storage medium. Recently we reported the holographic recording characteristics of phenanthrenequinone (PQ) doped PMMA. We now demonstrate the holographic storage of binary data in this material. Shift multiplexing is used to store multiple holographic data pages in millimeter thick material samples. Each data page consists of a random array of binary 40 micron pixels. Recording is performed near the Fourier transform plane of the data mask, allowing high bit-densities to be achieve.d The signal to noise ratio of stored data pages is used as an indication of hologram quality and data integrity. Bit density limitations are discussed with respect to the current performance of the recording material.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gregory J. Steckman, Iouri V. Solomatine, Gan Zhou, and Demetri Psaltis "Holographic data storage in phenanthrenequinone-doped PMMA", Proc. SPIE 3623, Organic Photonic Materials and Devices, (18 May 1999); https://doi.org/10.1117/12.348403
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Cited by 6 scholarly publications.
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KEYWORDS
Holograms

Diffraction

Holography

Signal to noise ratio

Polymethylmethacrylate

Data storage

Multiplexing

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