R&D: Volume Holographic Storage Using Sync-Angular Multiplexing by Rotating Material in Thick Photopolymer
Experimentally, 150 grey images are sync-angular multiplexed in a 2.0mm thick PQ/PMMA photopolymer, resulting in average diffraction efficiency of 0.05% and storage density of 41.1GB/cm³.
This is a Press Release edited by StorageNewsletter.com on September 9, 2022 at 2:00 pmOptics & Laser Technology has published an article written by Jian Wang, and Suhua Luo, Institute of Modern Optics, School of Physics, Key Laboratory of Micro-Nano Optoelectronic Information System, Ministry of Industry and Information Technology, Key Laboratory of Micro-Optics and Photonic Technology of Heilongjiang Province, Harbin Institute of Technology, Harbin 150001, China.
Abstract: “The sync-angular multiplexing by rotating medium is a simple but seldom used technique in recent years. While compared with the regular angular multiplexing, sync-angular multiplexing has the advantage to alleviate the cumulative scattering noise during recording in thick materials. Based on the experimental parameters, the available rotational angle range and spatial selectivity are studied by simulating the recording spot. Experimentally, 150 grey images are sync-angular multiplexed in a 2.0mm thick PQ/PMMA photopolymer, resulting in an average diffraction efficiency of 0.05% and a storage density of 41.1GB/cm3.“
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