Phenanthrenequinone-doped poly(methyl methacrylate) photopolymer bulk for volume holographic data storage

Abstract

We present the design and fabrication of a phenanthrenequinone-doped poly(methyl methacrylate) photopolymer material. Large blocks of samples were made, and the material showed negligible shrinkage after optical exposures. We recorded and reconstructed 250 holograms at a single spot, using a 1-cm(3) block.

Light-Sensitive Media-Composites for Recording Volume Holograms Based on Porous Glass and Polymer

“…Maximum values of total phase modulation, attained in the experiment, are as high as Σϕ 1 ≅ 12 rad, which was obtained on a sample 2.3 mm thick. With the use of polymeric media on the base of PMMA with PQ, other authors in work (Steckman et al, 1998) attained values Σϕ 1 ≅ 4.8 rad for a sample 3 mm thick, and in work (Lin et al, 2000) -Σϕ 1 ≅ 14 rad for a sample 8 mm thick. The cited works point out that Σϕ 1 grows linearly with growing sample thickness.…”

“…The hologram recorded, the particles, unbound to the framework (free), diffuse with the passage of time, spreading uniformly across the sample bulk and causing the supplementary grating to degrade and the photoproduct grating to "develop" (be enhanced), since particles are not subject to diffusion. This principle was successfully implemented in practice by using polymeric medium on the base of polymethylmethacrylate with PQ (Cherkasov et al, 1991;Veniaminov et al, 1991Veniaminov et al, , 1996Steckman et al, 1998;Lin et al, 2000Lin et al, , 2006Luo at al., 2008;Liu at al., 2010;. Attempts to implement the principle using other compositions was less successful.…”

Shrinkage Simulation of Holographic Grating Using Diffusion Model in PQ-PMMA Photopolymer

“…In recent years, the interest in photopolymer material as promising candidate for holographic memory has increased dramatically 3,4 . Photopolymer materials have much attention for use in holography, mainly because they can be designed to have high diffraction efficiency, real-time processing and they are low cost and easily synthesized and so on 5,6 .…”

Forward and Backward Detectable Gray-Scale Data Storage System in Polymeric Material

“…To cite some examples, holographic recording have been successfully used to encode images in large volumes of poly (methyl methacrylate) (PMMA) [3,4]. Jia et al have presented a generation of continuous gray levels in three-dimensional diffractive optical elements and have demonstrated the use of the two-photon polymerization method for fabricating threedimensional diffractive optical elements of continuous gray levels [5].…”