| 摘要 |
PURPOSE: The hologram data storage system is provided to record and regenerate both sides at the same time. CONSTITUTION: The hologram data storage system comprises: a laser(100) for oscillating laser beam; a beam splitter(110, 120, 130) for splitting the laser beam into a first object beam, a first reference beam, a second object beam and a second reference beam; a beam modulator(140, 150) for modulating the first and second object beams to a spatial beam; a beam open/close part for opening and closing a beam path; a beam introducing part for introducing a progress of the beam; a hologram storage medium having a beam absorption layer formed at an intermediate part of a recording part(201, 202) which simultaneously records using the first object beam, the first reference beam, the second object beam and the second reference beam, wherein the absorption layer is comprised of a material mixing FeO to Na2O-Cao-SiO2 and a material mixing FeO to Na2O-Cao-SiO2-P2O5-Al2O3. |
