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Hybrid Ternary Modulation Applied to Multiplexing Holograms in Photopolymers for Data Page Storage

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6 Author(s)
Fernandez, E. ; Dep. deoptica, Farmacologia y Anatomia, Univ. de Alicante, Alicante, Spain ; Marquez, A. ; Gallego, S. ; Fuentes, R.
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Holographic data storage is a new optical technology, which allows an important number of bits to be stored in a recording material. In this paper, holographic data pages were stored in a polyvinyl alcohol/acrylamide (AA) photopolymer layer, using a peristrophic multiplexing method. This material is formed of AA photopolymers, which are considered interesting materials for recording holographic memories. Moreover, a hybrid ternary modulation (HTM) was used to reduce the zero frequency of the Fourier transform of the object. A liquid crystal device was optimized to modify the object beam in order to obtain data pages with the HTM.

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Lightwave Technology, Journal of  (Volume:28 ,  Issue: 5 )