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23 January 2002 Optical storage in photopolymers using 3D microgratings
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An optical system for writing and reading of microscopic holographic gratings in a photopolymer layer is presented. The reflection gratings created by a highly focused laser beam can be used to replace the pit-land structure in a disk-based optical storage system. The modulation range of such three-dimensional microgratings is clearly localized to the focal region of a focused write beam. Holographic recording allows for using various multiplexing methods. To achieve storage densities higher than currently available, we propose a combination of wavelength multiplexing and multilayer storage. The fist steps in the system development as well as microholographic recording in Aprilis CROP photopolymers are reported.
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Susanna Orlic, Christian Mueller, Ruediger Schoen, Martin Trefzer, and Hans Joachim Eichler "Optical storage in photopolymers using 3D microgratings", Proc. SPIE 4459, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VII, and Optical Data Storage, (23 January 2002);

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